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Page Counts (PDF 8 x 10 in):
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Taxa Range: all temperate woody plants including trees, shrubs, conifers, vines, hardy palms, and subshrubs.
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Abelia to Ailanthus (108 pages, 38.0 MB)
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Abies to Araucaria (conifers only)
Acer exluding A. palmatum (159 pages)
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C genera excl. those below (97pages)
Cercis (95 pages)
Chamaecyparis F to O (56 pages)
Chamaecyparis pisifera (50 pages)
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Cryptomeria to Cupressus (158 pages)
D to E genera (70 pages)
F to G genera (179 pages) - revision soon
H to I genera excl. genera below (124 pages)
Hedera (236 pages)
Hydrangea macrophylla + serrata (Part I) (37 pages)
Hydrangea macrophylla + serrate (Part II) (47 pages)
Ilex hybrids, species A to C (281 pages)
Ilex species D to Z (194 pages)
J genera  (24 pages)
Jasminum (under revision)
Juniperus A to B species, misc. (22 pages)
Juniperus chinensis (181 pages)
Juniperus communis, horizontalis, x media (84 pages)
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Genera A (273 pages, 29.0 MB, Acanthus=22, Achillea=117, Acorus=14, Agapanthus-192, Agastache=70, Ajuga=109, Aquilegia=274, Arabis=47, Astilbe=191)

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Genera Liriope and Ophiopogon (19 pages, 15.2 MB)

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Genera D to E

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Abelia - Abies - Abutilon - Acanthus - AcerAchillea - Acorus - Adiantum - Aesculus - Agapanthus - Agave - Ajuga - Albizia - Alcea/Althea - AlliumAlstroemeria - Aucuba - Baptisia - Buddleia - Buxus - Caladium - CamelliaCampsis - Canna - Capsicum - Carex - Carpinus - Castanea - Catalpa - Catharanthus - Cercis - Chamaecyparis - Clematis - Clethra - Codiaeum - Coleus - Colocasia - Cornus - Convallaria - Cortaderia - Cotinus - Cotoneaster - Crassula - Crinum - Cryptomeria - Cuphea - Cupressus - Daphne - Dianthus - Dicentra - Dracaena - Eucomis - Euonymus - Euphornia pulcherrima - Fagus - Fatsia/x Fatshedera - Gardenia - Geranium - Geum - Ginkgo - GleditsciaGypsophila - Hamamelis - Hebe - Hedera - Helenium - Helianthus - Helleborus - HostaHydrangea - Hypericum

Genera I to O : Genera P to Z


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Latest OROC Registrations:

For convenience in find new registrations, we have decided to list the those created in the last few months, 20 or 100 perhaps:

If the plant name is underlined, there is an underlining web link to it. Otherwise use any links which follow it.

Moved data: once a cultivar has been fully registered, it will be moved to the genus section on the three pages of GENUS CENTRAL and assigned a registratrion number. This will only occur after it has appeared in at least one issue of the CULTIVAR.ORG NEWSLETTER.

Image use: no images are currently part of the OROC Registration program. You may only cut and past or reuse the text portions including the links.

UPDATED 8.18.2016

Imperata cylindrica YALBA™ 'ICL200' - 40cm tall x 100cm wide, more compact, dense than species typical, spreading quickly and wide, used as a tall flowering ground cover that eliminates weeds, Leaves medium green tinged red to about 5-20% surface. Flowers numerous, bright fluffy near white. We have seen 'Rubra' widely in the US and no colonies of it have ever been this white and floriferous in our experience. Lu: "Locks up more carbon in soil than most grasses" so best in masses as a monoculture, useful for both sandy and heavy clay soils. Image above courtesy of Ozbreed, In:  http://ozbreed.com.au/ornamental-native-grass/yalba-imperata-is-a-tough-compact-native-grass-with-longer-lasting-feathery-plumes-ornamental-native-grass/, accessed 8/18/2016. Youtube video embed follows:


Dracaena fragrans (Massangeana Group) 'Eve' - Less vigorous than parent 'Massangeana', strongly yellow- banded and yellow-striped, somewhat difficult to determine and describe from patent application notes and images.  Pat, or: US# 27073 on August 16, 2016 to William Ulate, Alajuela, Costa Rica as sport of 'Massangeana'.

Pulmonaria 'Shrimps on the Barbie' - 10 in. tall x 24 in. wide, low, spreading. Flower corolla rich "shrimp pink" (images are more medium, bright pink to us), calyx dark purplish-red. Leaves elliptic to elliptic-ovate, moderately spotted silver. Dr: mildew resistant. Or, in: http://www.terranovanurseries.com/growers/pulmonariashrimpsonthebarbie-p-714.html, accessed 8.18.2016, their own introduction for 2016-17.


Begonia REVELATION™ MAROON 'TNBEGRM'- 30 in. tall x 24 in. wide, trailing, forming dense, subglobose masses in containers. Leaves mostly dark rose-red but somewhat bright cherry red, vein medium green to olive green at 5-10% sufface, contrasting well, very glossy. Flower medium to light pink much of the summer. Best colors in cool weather but like most of the outdoor landscape Begonias they take a little bit of drought and heat. Or, in: Terra Nova Nurseries, their introduction 2016-17, photo above copyright owned by and courtesy of www.terranovanurseries.com

Vitex negundo 'Little Madame' - More compact and dense than 'Heterophylla', having shorter internodes and more branching that it. Flowers violet-blue (RHS 85B bud becoming 94B) and dark violet at the tip (RHS N88A, 94B), blotched white (RHS N155B)  on anterior lip, panicle 8 cm long (mean), 25 to 53 flowers per inflor, subpanicles 2-4 ( vs. 2-6 on 'Heterophylla'), petals 6 mm x 3 mm, bloom period about typical of parent 'Heterophylla' but in 2013 their trials bloomed of this bloomed one week later than the parent.  Leaves 7 cm long x 5cm wide, of 3-5 leaflets, entire to jagged, acuminate.
Pat, or: US Patent Applied for August 4, 2016 to Carol D. Robacker and David Knauft, University of Georgia, Athens, Georgia, USA, from irradiated seeds of 'Heterophylla' in 2006.

Vitex negundo 'WHIT L' - 3-4 ft. tall x 5-6 ft. wide, habit compact, much  branched, dwarf, densely held foliage. Leaves darker green from new growth of medium green tinged light purple near the base, 3-5 leaflets, densely clusters at the ends of shorter branchlets.  Flowers sterile, bluish-purple, panicles 4-6 inches long x 1.0-1.5 in. wide, buds grayish blooming in Oklahoma up to 3-4 weeks, being a longer bloom period of all selection known to the originator over his many year's experience. Pat, or: US Patent Applied for July 28, 2016 to Carl E. Whitcomb, Stillwater, Oklahoma, USA selected from 8000 seedlings which were 11 generational descendants from original research begun in 1986.


Nepeta racemosa 'Angel Wings' - 6 in. tall in leaf, 8 inches tall in flower x 14 inches or more wide, trailing, low. Flowers much as parent 'Blue Wonder'. Leaves broadly margined clean white, chnimera usually complete along the entire margin, coverage of chimera 20-60% surface, making for a very bright, bicolor variegate, leaf slightly more rugose than parent 'Blue Wonder' from which it sported. In: Terra Nova Nurseries. Photo above courtesy of Laurence Hatch, imaged at All-American Trial Garden, JC Raulston Arboretum, NC State University, July 2016. Images are not part of OROC Sharing.



Ipomoea batatas 'FloraMia Rosso' - compact, medium vigor for ornamentals in species. Leaves cordiform, acute, cordate, multi-hued with potentially 40 different colors on each plant, new growth yellowish to chartreuse, becoming tinged pink and then more red, the veination getting the redder pigments sooner, intermediate tones for medium-aged leaves mostly in amber-pink, lime tinged red, and finally a more stable if muted and dusky red shade, later becoming more olive and olive tinged red, these greener shades normally still with red veins for contrast. In, or: Dummen Orange, intro. about 2016. Photo above courtesy of Laurence Hatch, imaged at All-American Trial Garden, JC Raulston Arboretum, NC State University, July 2016. Images are not part of OROC Sharing.

Lagerstroemia indica 'Jinhuang' - 1.7 m tall x 1.8m wide (11 years), semi-dwarf, stems reddish-purple becoming grayish-brown. Leaves bright yellow (RHS 25A, 1A), some red in new tips, later more green, 3.3 - 5.3 cm long x 2.2 - 3.7 cm wide. Flower corolla deep pink (RHS N57B), panicle 9-18 cm long x 7.5-17 cm wide. Or: Institute of Botany, Jiangsu Prov. & Chin. Acad. Sciences, sport 2003. Li: Wang, Shu'an. 2016. HortScience 51: 595-6. First known cultivar in species to have golden or yellow leaf color.

http://ozbreed.com.au/advanced-trees/vintage-red-eucalyptus-is-a-landscape-tree-with-red-foliage-advanced-trees-range/
Eucalyptus cladocalyx VINTAGE RED™ 'EUC78' - 6-8 m tall x 3-4 m wide as small tree, can be trimmed lower as shrub or hedge at 2-4 m tall. Stems dark red to blackish-red, maturing to purple and grey tones, bark smooth, grey, exfoliating with age. Leaves bright red at first, almost a coral-red shade, becoming rich dark burgundy and effectively a dark purple from the distance as seen in the above image. It is the first red-leaved clone in this genus in terms of the entire canopy color (not just red tips) and this dark color persisting all year. Dr: high myrtle rust resistance. Photo above courtesy of and copyright owned by Oxbreed Nursery, In: http://ozbreed.com.au/advanced-trees/vintage-red-eucalyptus-is-a-landscape-tree-with-red-foliage-advanced-trees-range/, accessed 8.10/2016, grown on "elite understock" from CSIRO which improved on earlier trials where the top might outgrow the understock. If I did not know better I'd guess this was a new beech, Fagus sylvatica 'Rotundifolia Purpurea'..

Calycanthus floridus var. purpureus 'Burgundy Spice' - leaves glossy, rich chocolate-purple to reddish-purple. Or: Rich Heesellein, Pleasant Run Nursery, Allentown, New Jersey, USA. In: Star Roses and Nurseries c. 2015, https://issuu.com/starrosesandplants/docs/srp_catalog_2017_allpages,  accessed  8.11.2016. It does not appear at  http://www.pleasantrunnursery.com, when a search was run on 8.11.2016 nor when the "New Plants" bar was pressed.

Cedrus deodara FEELIN' SUNNY® 'MonKinn' - 5-12 ft. tall x 6-8 ft. wide (10 years) per Monrovia website, US Patent app states "planrt height 62cm...diameter about 65cm...compact and low spreading...slow-growing, freely branched, dense and bushy...slower growing and more compact than than plants of 'Golden Horizon'...not as mounding as trees of 'Golden Horizon'", Monrovia's images, accessed 8.6.2016,  show cascading plants and one grafted high on a standard so it remains unclear if it will be marketed as a classic pyramidal conifer or in other forms.. Leaves bright yellow most of the year  including winter ("greyed yellow..becoming golden yellow" per US Patent app), sunburn resistant, internal or shaded foliage becoming lime and perhaps close to typical green.
In: Monrovia Nursery, offered by them in 2017, http://www.monrovia.com/plant-catalog/2017-featured-plants/, accessed 8.2.2016.
Pat, or: US# 23886 to Ron Damien Kinney on Sept. 10, 2013, sport of 'Feelin' Blue' in 2004 appearing in Dayton, OR, USA. assigned to Monrovia Nursery.

REJECTED - Eugenia LEMON SWIRL®  is a marketing name from Monrovia Nursery for the existing Eugenia myrtifolia 'Variegata' when trimmed into a narrow columnar shape  with cut-out swirled, layered and upwardly ascending tufts of foliage. It is to be considered both a rename of an existing, old clone and a marketing name for one specific training/trimming variant of such. Monrovia Nursery did not apply for this registration and it evaluated by our OROC staff during a review of modern internet catalog literature.

Berberis TINY N' SPINY® 'Bokratin' - 40cm tall, low, compact, evergreen, designed as tough, weed-covering, woody ground cover Leaves bright green, slightly tinged bronze in new growth, generally green all year. Flowers light yellow. Rust resistant.
In: http://www.boot.nl/en/text/89/Trees, accessed 8.6.2016

Hypericum CORNFLAKES® 'Vappzalm' - 50-70cm tall. Rust resistant. Leaves retained in autumn. Fruit brownish-red, calyx lime green, later more black, lasting up to December. Flowers bright yellow. 

Malus RED OBELISK® 'Dvp Obel' - 3-5m tall x 2m wide at most, plants have been measured at 4m tall x 1.2 wide when young, compact, columnar to very upright, very narrowly pyramidal with some age. Flower buds magenta pink, later medium to light pink, opening near white on the inner side, reverse may be white tinged pink for some time, sweet scent. Fruit conical, red, useful for crab apple jelly, not edible for fresh. Leaves 3-5 lobed, purplish-brown in tips, becoming dark green, fall color may contain yellow shade Or: Belgium. Web:
http://www.publicgreen.be/catalog/pdfuk/151.pdf, accessed 8.6.2016

Malus hupehensis ARIE MAURITZ® - 7m tall, strong growing small tree, upright. Flowers light pink, opening pinkish-white. Resistant to scan and powdery mildew. Eval: highest rate crab apple in street tree use by Applied Plant Research, Wageneningen University. In: http://www.boot.nl/en/text/89/Trees, accessed 8.6.2016, introduced in Holland about 2010. Web:
http://www.greenkeeper.nl/upload/documenten/04._jan_p._mauritz_-_de_juiste_boom.pdf

Elaeocarpus LITTLE EMPEROR® -

Ilex x meserveae 'David Carroll' - 30cm tall x 27cm wide as young plants, compact, rounded, freely branching, dense, bush, slower than parent 'Blue Princess'.. Leaves bright yellow to yellowish-green (RHS 151C abd 151D, 184A, 176C, 143C)., 3.5-4.0cm long x 2.4cm wide, petioles 6mm long x 1m wide, ovate, apex acute, base obtuse to truncate, margins serrate with short spines.
Pat, or: US# 26926 on July 12, 2016 to David Carroll, sport of 'Blue Princess;, found November 2003 on plants in Wayne Township, PA, USA.  patent assigned to Spring Meadow Nursery.
Google Patent: https://www.google.com/patents/USPP26926, accessed 8.6.2016

Jasminum sambac SUMMER SOUL® -

Leptosceptrum stellipilum 'October Moon' - leave bright chartreuse, irregularly margins cream to near white for portions of the margin, often less than 50% of the total edge, a sort of lime sport with variegation too.

Ligustrum japonicum 'Korean Choice' - notable for cold hardiness to -20 deg. F. Or: from seed collected on the Yellow Sea coast of Korea.

Symphoricarpos PROUD BERRY™ 'Sofie' - 3-4 ft. tall x 4-5 ft. wide. Fruit bright pink, very showy. Leaves notably bluish-green, very round obtuse apex. Pat, or: US# 21226 to Catharina Marie Hoekstra-Arisz, The Netherland., considered an improvement on AMETHYST™. In: Spring Meadow Nurseries and Proven Winners to US trade

Chamaecyparis obtusa JADE WAVE™ 'MonYur' - 6-8 ft. tall x 3-4 ft. wide, compact, uniform, pyramidal, foliage units in waves, branches "gracefully curved...fern-like". As a long term student of the species (L. Hatch, Editor), this has a far more flat and plumose a spray than nomal for this species, and I would imagine a seedling of 'Lycopodioides Aurea' crossed to the species might give a similar look, the branchlets very spread out and articulated into fine, ferny units. Tips don't curl down like many gold or near gold seedlings in this species.. Leaves bright to pale green, tips closer to lime,  a sort of popular notion of a jade color, while that true stone covers everything from pale to dark green and some blues. USDA 4.
In: http://www.monrovia.com/plant-catalog/plants/5750/jade-wave-fernspray-false-cypress/, accessed 8.2.2016

Acer circinatum PLUM PASSION® 'MonCir' - leaves heavily textured, bright red to rose-red at first, later a darker plum-red and finally a very rich medium to dark purple toned red set of shades. Or: Rich Wells of Monrovia Nursery, Azusa, California, USA, selected in Dayton, Oregon, http://www.monrovia.com/plant-catalog/plants/5553/plum-passion-vine-maple/, accessed 8.11.2016.
Web photo:
http://1f7t5d3z9d72pt5vlamu45m4x.wpengine.netdna-cdn.com/wp-content/uploads/plants/originals/9901.jpg

The following registrations were updated from 7.5.2016 to 8.1.2016 and included in Cultivar.org Newsletter V

Buddleia WISTERIA LANE® - plants shrubby, wide-mounded to semi-pendulous, terminal inflorescence distinct pendulous to semi-pendulous, suggestive of the genus Wisteria. Flower corolla light to medium blue.

Juniperus scopulorum BURLY BLUE™ - 24 in. tall x 6-8 ft. wide, habit low-mounded to spreading, grafted on standard per Monrovia site but they state "excellent replacement for Blue Creeper Juniper". Leaves richly frosty, blusih-grey. USDA 3. The habit suggests it may be a cross to J. horizontalis (which occurs in the wild within the J. scopulorum range and is well documented as a hybrid to it) or if from cultivation one of many low junipers which can breed to the tall species. In: http://www.monrovia.com/plant-catalog/plants/5507/burly-blue-juniper/, accessed 8.2.2016

Litsea populifolia ASIAN ESSENCE™ 'DJHC8059'  - 18 ft. tall x 10 ft. wide, pyramidal, deciduous tree (as species), form upright open. Leaves aromatic (as species), decidely rounded, suborbicular, petiole red, reminding me a bit like Fagus sylvatica 'Rotundifolia' or some Cotinus. Flowers yellow in small umbels (as species). USDA 7. Or: Dan Hinkley collected in western Sichuan. In: http://www.monrovia.com/plant-catalog/plants/5877/asian-essence-litsea/, accessed 8.2.2016

Iresine herbstii IRRESISTIBLE™ 'II01'- 60cm tall x wide, very compact, mnounded. Leaves medium to dark chocolate brown, tinged red (more so on the reverse), slightly marked pink in parts of the blade and stems, midrib and some secondary veins the most pink above. In: Ozbreed, http://ozbreed.com.au/emporium-range-and-hotties-range/irresistible-iresine-emporium-range-hotties/, accessed 8.2.2016

Colocasia 'Dragon Heart' ('Dragon Heart Gigante' of trade?) - 7-8 ft. tall x 5-8 ft. wide, a massive tropical "ear", tubes to 15cm wide. Leaves rich dusky to velvety green tinged dark purplish-black to rich dusky purple to near blackish-red, distinctly red veined on the midrib and secondary veins on the reverse, by far wider a blade than any dark or dusky purple pure C. esculenta clone, to 30 in. long x 24 in. wide, petioles streaked dark maroon and black. Prop: tissue culture only. USDA 8. Pat, or: US# 26890 on June 28, 2016 to Brian Williams, Louisville, Kentucky as unnamed Colocasia x C. gigantea in June 2010, slected in June 2013 as superior seedling. This June 2016 patent does not contain the word "Gigante" in the cultivar name and since this clone is a product of C. gigantea, we understand the three-word cultivar name to be superflous. That said, the originators website and that of Plant Noveau add the "Gigante" term with no indication in description that they could be different and only listing one cultivar with dragon heart in the name.  In: http://plantsnouveau.com/plant/colocasia-dragon-heart-gigante/, accessed 8.2.2016

Gardenia jasminoides var. radicans O SO FINE™  'KEN04' - 30 cm tall x 100 cm wide, mounding to groundcover type, "dwarf form with softer appearance", short internodes,  finely-textured. Flowers white, more numerous than typical for groundcover types. Or: Kenhurst Nursery, as sport. In: Oxbreed Nursery. Aw: Gold Award, Green Expo Sydney. Web:
http://ozbreed.com.au/hardy-exotic-range/o-so-fine-gardenia-is-a-finer-leaf-groundcover-plant-with-masses-of-white-flowers-hardy-exotic-range/

Juniperus horizontalis [Plumosa Group] JAZZYJEWEL™ - as the Group but foliage very heavily mottled yellow to gold at about 25-40% of the foliage mass, this being a departure from several known mutants of 'Plumosa' and 'Andorra Compact' which are mostly mottled white to cream in low coverage rates (usually 5-24% foliage mass). This clone also appears ot have a richer gold chimera color and more massive chimeral coverage the 'Variegata', the species' first known variegated clone.

Aloe SPOTS AND DOTS™ 'LEO 6132' - 40cm tall x 30cm wide in leave, stemless. rosettes small to medium for the genus. Leaves greyish-green, numerous spots and dots as the name implies on the upper surface, these paler and more white or silver than the main blade color, underside even more heavily spotted. Flowers bicolored, red and yellow, held well above the mature foliage.
In: 2014, http://aloe-aloe.com.au/2014/03/spots-n-dots/, accessed 8.2.2016


Hedera helix 'Eny' - "Leaves narrow cordate to cordate, 4 cm long x 3 cm wide (average), light (limey) green with white and grey-green spots and mottles, apex rounded, stems and petioles red. 'Eny'
 could be compared to at least three cultivars: 'Eileen', 'Eugen Hahn', and 'Bruder Ingobert'. 'Eny' differs from 'Eileen' with it's more flat, and typically narrow cordate leaves (not wavy, wide, five-lobed,or reniform as in 'Eileen'), gray-green spots and zones together with white spots and smears, never with the faint reddish tints (leaves of 'Eileen' spotted white or creamy with faint reddish tints). Leavews of 'Eny' are never colored dark green or product acute lateral lobes as 'Eugen Hahn'. Rarely, similar narrowly cordate leaves can be produced by 'Bruder Ingobert' but typicals it's leaves are 3-5 lobed, dark green, less white spotted and much more gray-green zoned". Or: Dr. Andriy V. Yena, Professor and Head of the Dept. of Phytobiology, Simferopol, Repoublic of Crimea, the previous description written by the originator.

Liriope muscari SILVERLAWN™ 'LIRSS' - 35cm tall x 40cm wide in leaf, low-growing for species. Leaves "clean variegated", chimera appearing to bhe well-distributed as wide stripes throughout the width of the blade, being 35-70% of the surface in some cases, "almost silver from a distance", appearing more narrow than species typical from images we have seen.. Or, in: http://ozbreed.com.au/foliage-first-range/silverlawn-liriope-is-a-low-growing-contrast-plant-with-clean-variegated-foliage-foliage-first-range/, accessed 8.2.2016, noting "previous known as SILVERSTAR™ ". It should be noted that renaming of unregistered trademarks does not countervene any nomenclatural or trademark code or law and must be allowed if the originator suggests it.

Liriope muscari PINK PEARL™ 'VS0001' - 25cm tall x wide, dwarf to very compact, low for species. Leaves very thinly striped white to cream, chimera about 5-20% surface, sometimes favoring one margin or side over the other, not a bold variegate. Flowers pink, inflor. mostly within and only slightly above the foliage canopy per originator's images.
Or, In: http://ozbreed.com.au/foliage-first-range/pink-pearl-liriope-is-a-compact-low-growing-plant-with-clean-variegated-foliage-foliage-first-range/, accessed 8.2.2016
Video(Youtube): https://www.youtube.com/watch?v=-RPD-S9RUY8

Hatch's Perennials

3.1 (Google Play ebook)

Catalpa bungei 'Menghuan' ("Colorful Manchurian Catalpa") - leaves margined rose-red at first, later becoming edged yellow and finely white in irregular width, margins "very wavy", adding to the interest, the chimera appearing to be from 15-55% of the leaf surface according to the US Patent application drawings, one of which is shown above. Or: mutation found on May 5, 2011 on road side in Long'an District, Anyang City, Henan Province, China. It was grafted on May 10, 2011 onto species stock. US Patent applied for on March 16, 2016 by Huaming Wang, Suiping, China. It is the opinion of our attorney and many others that US Patent application data is entirely in the public domain unless the applicant makes an order to copyright the known drawings, symbols, or images. Lacking such evidence to the contrasy, we freely publish this image here, however asking it be attributed to the originator in a proper scientific manner.

Weigela florida COCO KRUNCH® 'WFMOBLA' - 2-3 ft. tall x w wide, very compact, neat, mounded. Leaves dark ruby-red to brownish-red. Flower corolla "soft red", appearing more reddish-magenta in the image provided. USDA 4 "due to tis Canadian parentage". Or, in: "new excluesive from Monrovia, offered online 8.1.2016, also listed as a 2017 featured plant"
Web: http://shop.monrovia.com/coco-krunchtm-weigela-36571.html, accessed 8.1.2016

Weigela florida GOLDEN JACKPOT® 'MonRigney'- 4-6 ft. tall x wide. Leaves rich golden yellow, holding gold tones all summer, not fading in summer heat. Flower buds open rich near red, finally dark pink, lasting nearly 30 days. Web: http://www.monrovia.com/plant-catalog/plants/5254/golden-jackpot-weigela/, accessed 8.1.2016, as "perhaps the brightest weigela yet".

The following registrations were updated 6.25.2016


Berberis thunbergii LAMBRUSCO™ 'BailElla' - 2-3 ft. tall x 3-5 ft. wide, compact, spreading-mounded, dense. Leaves light red becoming dark burgundy tones.
Or, in: www.baileynurseries.com, accessed 6.24.2016, http://www.firsteditionsplants.com/lambrusco-barberry

Berberis thunbergii MOSCATO™ 'BailAnna' - 2-3 ft. tall x 3-5 ft. wide, compact, spreading-mounded, dense. Leaves bright green, thin peach orange margin, mostly medium green by summer
Or, in: www.baileynurseries.com, accessed 6.24.2016, http://www.firsteditionsplants.com/moscato-barberry

Thuja occidentalis HOT HEAD® 'RutThu#1' - 3-4 ft. tall x wide, subglobose dwarf, compact, original plant 31 in. tall x 24 in. wide when 'Holmstrup' parent was typically 57 in. tall x 48 in. wide at the same age and growing conditions.  Leaves with "vibrant" but rich, dark green all year, not bronzing, "unparalled texture". Proven heat and cold tolerant, USDA 3. Or: US Plant Patent# 26840 on June 21, 2016 to John M. Ruter, Bishop, Georgia, USA, selected at the University of Georgia, Athens, Georgia as seedling of 'Holmstrup' sown 2003, this being the darkest green and most compact of the five most elite seedlings. USA. Web: http://gardenersconfidence.com/plants/hot-head-arborvitae, accessed 6.24.2016

Viburnum plicatum f. tomentosum LIME MARTINI™ 'Limartz' - 8-10 ft. tall x 6-8 ft. wide, subglobose to mounded. Flower heads tinged lime green over cream at first, later more cream and finally close to white with maturity. Web: http://www.upshoothort.com/other-selection/lime-martini-doublefile-viburnum/, accessed 6.24.2016

Viburnum plicatum f. tomentosum SHARON KAY™ 'Shakaz' - 8 ft. tall x wide, wide-mounded to subglobose, more horizontal with age, top-grafting is also suggested by the originator. Flowers sterile type but in 3 rows of tepals or bracts. Leaves medium green, becoming dark burgundy red in fall. Or, in: http://locustgroveplants.com/, see http://locustgroveplants.com/Sharon%20Kay%20Viburnum.htm, Web: http://www.upshoothort.com/other-selection/sharon-kay-doublefile-viburnum/, accessed 6.24.2016

Viburnum PEARLIFIC™ - Web: http://www.dirrplants.com/viburnum-for-american-gardens.html, accessed 6.25.2016

Viburnum x jackii 'Prairie Classic' - data pending

Viburnum plicatum f. tomentosum 'Copper Ridges' - data pending

Viburnum lentago 'Deep Green' - leaves larger, darker green, very leathery and thick, becoming reddish in fall. Or: Reeseville Ridge Nursery, Wisconsin, USA. So: http://www.classicviburnums.com, accessed 6.25.2016

Viburnum nudum 'Callaway Large Leaf' - presumed to be from Callaway Gardens(?): So: http://www.classicviburnums.com, accessed 6.25.2016

Viburnum nudum 'Callaway Small Leaf' - presumed to be from Callaway Gardens(?). So: http://www.classicviburnums.com, accessed 6.25.2016

Viburnum nudum 'Earthshade' - 6-10 ft. tall, more compact than 'Winterthur'. Leaves glossy, dark green, turning orange, red, and yellow shades in fall. So: http://www.classicviburnums.com, accessed 6.25.2016

Viburnum prunifolium 'Forest Ridge' - dense, erect ovoid form, large shrub to small tree. Leaves rich burgundy red in new growth or green tinged red, later glossy dark green, dark maroon red again in fall. Or: Dan Moore, McKay Nursery, Wisconsin, USA. So: http://www.classicviburnums.com, accessed 6.25.2016

Viburnum trilobum 'Jewell Box' - 18 in. tall x 24-30 in. wide, true dwarf, very compact, low dense mound or tufted mound. Leaves reddish in new tips, later dark green, Flowers very few or much reduced in size. Or: Darrell Kromm, Reeseville Ridge Nursery, Wisconsin, USA. So: http://www.classicviburnums.com, accessed 6.25.2016

Lagerstroemia RED ROOSTER™ 'PIILAG-III" - 8-10 ft. tall, medium-sized, upright. Leaves very dark green, mildew resistant. Flowers a true bright red. Pat: US#23178.

Lagerstroemia PURPLE COW™ 'GAMAD IX- habit medium-sized for genus. Leaves very dark green. Flowers said to be "deep purple" but all images we have seen show magenta-violet tones and not a true grape purple. Web: http://gardenersconfidence.com/plants/purple-cow-crapemyrtle, accessed 6.25.2016. Pat: US# 23560.

Lagerstroemia PINK PIG™ 'GAMAD VIII' - Habit mid-sized for the genus. Flower petals light pink, a clean pastel shade, calyx and stems rich red and contrasting well.
Pat: US# 23499. Web: http://gardenersconfidence.com/plants/pink-pig-crapemyrtle, accessed 6.24.2016

Rodgersia henrici CHERRY BLUSH® - 90-100cm tall. Flowrs dark rose-red, close to a true red. Leaves dark bronzish-green.

Rodgersia CANDY CLOUDS® - 1.2m tall. Flowers a blend of white and pink shades. Leaves green.

Rodgersia SNOW CLOUDS® - 1.2m tall. Flowers white with some faint pink tints in bud, later quite white. Leaves green.

Rodgersia pinnata FIREWORKS® - 1.2m tall, stems red and showy. Flowers light pink. Leaves green tinged red, much textured as is this species.

Colocasia esculenta 'Black Ripple' ('Puckered Up') - 3-4 ft. tall, habit vigorous (taller than 'Black Magic'), clump-forming, generally lacking stolons, very vigorous. Leaves very glossy, dark blackish-purple, surface very rugose, corrugated, and puckered, reflecting highly variable patterns of lights and iridescence shades, petiole dark purple, slightly paler than the blade. Or: US Patent# 26151 on November 24, 2015 to Brian Paul Williams, from controlled breeding in Louisville, Kentucky, USA in 2009 with unnamed parents, assigned to originator's firm of Brian's Botanicals, propagated by originator in vitro in Eustis, Florida, USA in 2012.

Colocasia esculenta 'Red Eyed Gecko' - 3-4 ft. tall x wide. Leaves more broadly ovate-sagittate, bright lime green, paler or more yellow secondary veins and midrib, distinct reddish or rose-red spot on leaf upperside at the petiole attachement point (pap), giving the appearance of an red eye while being in Gecko green colors. Or: Brian Williams, Louisville, Kentucky, USA as hybrid, http://briansbotanicals.us/, accessed 6.24.2016

Colocasia esculenta 'Painted Black Gecko' - 3-4 in. tall. Leaves glossy dark blackish-purple above, reflective of various colors and light tones, iridescent, slightly rugose and puckered (much less so than 'Black Ripple') more grayish-purple to maroon-gray below. Or: Brian Williams, Louisville, Kentucky, USA as hybrid, http://briansbotanicals.us/, accessed 6.24.2016

Colocasia esculenta 'Black Sapphire Gecko' -  4-6 ft. tall, larger than some black clones. Leaves very large, to 12 in. wide or more, glossy dark blackish-purple, moderately rugose, dark maroon below. Or: Brian Williams, Louisville, Kentucky, USA as hybrid, http://briansbotanicals.us/, accessed 6.24.2016

Colocasia esculenta 'Lemon Lime Gecko' - Leaves very large, wider than normal, light green, sectored (5-25% surface) in a paler lime green. Or: Brian Williams, Louisville, Kentucky, USA as hybrid, http://briansbotanicals.us/, accessed 6.24.2016

Colocasia esculenta 'Madeira' - 2-4 ft. tall, shorter than most cultivars. Leaves medium to light green, distinctly tinged bluish-violet or grayish-purple along the secondary veins, more black and dusk violet-purple tones with more sun.  Or: Brian Williams, Louisville, Kentucky, USA as hybrid, http://briansbotanicals.us/, accessed 6.24.2016

Colocasia esculenta 'Midori Sour' - 3-5 ft. tall. Leaves very wide, lime green overall, much paler and yellower midrib and secondary veins, irregularly darker green blotches (5-10% surface). Or: Brian Williams, Louisville, Kentucky, USA as hybrid, http://briansbotanicals.us/, accessed 6.24.2016

Colocasia esculenta 'Sangrina' - 3-5 ft. tall, stems dark red to pinkish-red, very showy. Leaves dark green, veined bluish to purple shades. Flowers bright pink. Overwintered 3 years (to date, June 2016) in Louisville, Kentucky (USDA 6). Or: Brian Williams, Louisville, Kentucky, USA as hybrid, http://briansbotanicals.us/, accessed 6.24.2016

Dicenta (D. peregrina x D. eximia) RED FOUNTAIN® - 25-30cm tall, vigorous mounds compared to older fernleaf hybrids, more strongly rhizomatous than parent species. Leaves greyish-green to bluish-green, very highly incised. Flowers rich cherry red (patent says "dark burgundy" or RHS 60A, 65D), with paler, pink margins, 16 or more flowers per panicle, long bloom period.
Pat: US# 21269 award to Akira Shiozaki, Hokkaido, Japan on August 31, 2010, a deliberate cross, first reproduced 2005, licensed to Walter Blom Plants BV.

Achillea millefolium 'Ritzy Rose' - 10-14 in. tall x wide, shorter, more compact and fuller than species. Flowering earlier than species typical, ray bright, medium rose-pink, paler eye, not a harsh magenta. Or: Syngenta. In: Blooms of Bressingham. See http://www.glplants.com/plants/4297-Achillea-millefolium-Ritzy-Rose

Achillea millefolium 'Ritzy Ruby' - 10-14 in. tall x wide, shorter, more compact and fuller than species. Flowering earlier than species typical, rays ruby-red, paler contrasting eye, later more pink. Or: Syngenta. In: Blooms of Bressingham

Iberis gibraltarica 'Lavish' - Flowers deep lavender, very long blooming selection. USDA 7a. In: www.ballseed.com, accessed 6.18.2016

Iberis sempervirens SNOW CONE™ - 5-8 in. tall x 9-12 in. wide, dwarf to very compact, subglobose, not flopping over as 'Snowflake'. Leaves dark green. Vegetative clone. Or: Syngenta c. 2015

Iberis SNOWSURFER™'Forte' - 6-12 in. tall  12-18 in. wide, very high vigor. Flowers over longer period of time than normal. Vegetative clone.  Or, in: Syngenta

Iberis sempervirens TAHOE™ - 8-10 in. tall x 4-8 in. wide, compact, well-branched, more uniform than 'Snowflake' and "unprecedented uniformity from seed Iberis". Flower typical white, 1-2 weeks earlier than 'Snowflake'. Seed strain unlike their SNOWSURFER and SNOW CONE clones. Or, in: Syngentaflowers.com, accessed 6.18/2016, http://www.syngentaflowers.com/country/us/en/Documents/Catalog/Syngenta%20Flowers%202016%20Perennial%20Catalog.pdf

Sedum spurium 'Solarity' - 4-8 in. tall x wide, well-branched. Flowers rich violet-red, mixed tones including medium pink, magenta, violet-red, and others. Seed strain.
Or, in: Syngentaflowers.com, accessed 6.18/2016, intro. 2016, http://www.syngentaflowers.com/country/us/en/Documents/Catalog/Syngenta%20Flowers%202016%20Perennial%20Catalog.pdf'

Sedum telephium SURRENDER™ - 6-10 in. tall x 4-8 in. wide. Flowers in small, compact corymbs, violet-red to pinkish-red. Seed strain.
Or, in: Syngentaflowers.com, accessed 6.18/2016, intro. 2016, http://www.syngentaflowers.com/country/us/en/Documents/Catalog/Syngenta%20Flowers%202016%20Perennial%20Catalog.pdf

Sedum 'Over the Moon' - 16-18 in. tall x 22-24 in. wide, very dense, neat.  Leaves wide, dark olive green, tinged red to rose-pink on the margins. Flower heads creamy-white blushed pink to varying degrees, producing a sort of glowing moon effect. Or, in: www.waltersgardens.com, bred by them, accessed 6.18.2016, intro. 2016, http://www.perennialresource.com/encyclopedia/view/?plant=2715

Sedum 'Pillow Talk' - 18-24 in. tall, vigorous, stems tinged rose-pink. Leaves grayish-green, sometimes tinged red to rose, becoming more chartreuse and pink in fall.  Flower heads 5-6 in. wide, dark pink and magenta. Resistant to Rhizoctonia. Or, in: www.intrinsicperennialgardens.com, accessed 6.18.2016, introduced by them 2016, , web: http://www.intrinsicperennialgardens.com/sitefiles/wp-content/uploads/IPG_Intros_FINAL-spreads.pdf

Sedum ellacombianum 'Cutting Edge' - 6 in. tall x 12 in. wide, vigorous. Leaves margined light to medium yellow, tinged pink in first shoots, chimera about 8-15% surface, and tracing the apical crenate to serrate teeth of each leaf for added effect. Or, in: www.intrinsicperennialgardens.com, accessed 6.18.2016, their own intro., press release (May 2016): http://www.intrinsicperennialgardens.com/sitefiles/wp-content/uploads/Sedum-Cutting-Edge.pdf

Athyrium niponicum var. pictum 'Pearly White' - fronds marked silver as typical but heavily suffused a pearlescent white tone, showing much less silver than normal and subdued, medium green margins. Some growers show it more heavily pearlescent, lacking green, and much like 'Ghost'.  In: US trade 2016.

Coreopsis 'Gilded Lace' - 40-55 in. tall x 36-72 in. wide, much taller than other cloned with C. verticillata-type foliage. Flowers very numerous, covering the entire plant at times, heads 1.5 in. wide, rays golden-yellow, disk dark orangish-brown, bloomed up to 18 weeks long in Mt. Cuba's 2015 Coreopsis trials. Leaves lacy, finely dissected and incised, ferny, likely from C. verticillata parentage. Mildew resistant. Or: Peter Heus, likely hybrid of C. verticillata and C. tripteris. In: Plants Noveau. Lsp: https://www.mtcubacenter.org/plant-trials/detail/coreopsis-gilded-lace/

Hibiscus [hardy herbacous] SUMMERIFIC® 'Ballet Slippers' - 48-52 in. tall. Flowers blush to near white, subgle light pink suffusions (not a picotee) near the margin, large red eye, nicely undulate, 7 in. wide, flowers produced over entire plant not top down as many older cultivars, very long bloom period. Leaves medium green, serrate, not lobed. Or, in: www.waltersgardens.com, bred by them, introduction 2016, accessed 6.18.2016, http://www.perennialresource.com/plants/general-perennial/2671_hibiscus-summerific-reg--ballet-slippers-ppaf-cpbraf.aspx

Allium cernuum 'Wine Drop' -  15-18 in. tall. Flowers darker pink than typical, pedicels rich violet-red. Vegetative clone. Or, in: www.intrinsicperennialgardens.com, accessed 6.18.2016, introduced by them 2013, web: http://www.intrinsicperennialgardens.com/sitefiles/wp-content/uploads/IPG_Intros_FINAL-spreads.pdf

Allium PURPLE LOLLY™ 'August Asteroids' - 18 in. tall. Flowers numerous, light pinkish-lavender, loose, subglobose heads. Or, in: www.intrinsicperennialgardens.com, accessed 6.18.2016, introduced by them 2016 with HGTV, web: http://www.intrinsicperennialgardens.com/sitefiles/wp-content/uploads/IPG_Intros_FINAL-spreads.pdf

Allium LAVENDER LOLLIPOP™ 'Windy City' - 15 in. tall x wide then 18-20 in. tall in full flower. Flower head dark rosy-purple. Leaves glossy dark green. Or, in: www.intrinsicperennialgardens.com, accessed 6.18.2016, introduced by them 2015 with HGTV, web: http://www.intrinsicperennialgardens.com/sitefiles/wp-content/uploads/IPG_Intros_FINAL-spreads.pdf

Carex pensylvanica 'Straw Hat' - 5-6 in. tall, rhizomatous, more vigorous than some forms of species. Flower heads more numerous than some species forms, these in straw yellow and brown. Or, in: www.intrinsicperennialgardens.com, accessed 6.18.2016, introduced by them 2016, web: http://www.intrinsicperennialgardens.com/sitefiles/wp-content/uploads/IPG_Intros_FINAL-spreads.pdf

Veronica 'Good Night Irene' - 18 in. tall or more. Leaves long, dark green, Flowers light violet-lavender, July to August bloom. Or, in: www.intrinsicperennialgardens.com, accessed 6.18.2016, introduced by them 2016,  web: http://www.intrinsicperennialgardens.com/sitefiles/wp-content/uploads/IPG_Intros_FINAL-spreads.pdf

Echinacea 'White Showoff' - 36 in. tall or more, vigorous. Flower rays near pink white, hanging downward. disk orangish-yellow (honey or amber toned) with green. Or, in: www.intrinsicperennialgardens.com, accessed 6.18.2016, introduced by them 2016, derived from the original pink-rayed 'Showoff', a superior white seedling from it, , web: http://www.intrinsicperennialgardens.com/sitefiles/wp-content/uploads/IPG_Intros_FINAL-spreads.pdf

Echinacea 'Wild Horses' - 36 in. tall or more. Flower rays very long, bicolored, pink with a distinct magenta-red basal suffusion or marking. Or, in: www.intrinsicperennialgardens.com, accessed 6.18.2016, introduced by them 2016, web: http://www.intrinsicperennialgardens.com/sitefiles/wp-content/uploads/IPG_Intros_FINAL-spreads.pdf

Polemonium reptans 'Soft Rain' - 12 in. tall, smaller than typical. Leaves smaller, more refined. Flower irridescent light blue which darker with age. Or, in: www.intrinsicperennialgardens.com, accessed 6.18.2016, introduced by them 2016 "after years of selecting for unique forms of reptans we finally have a finer form to share",  web: http://www.intrinsicperennialgardens.com/sitefiles/wp-content/uploads/IPG_Intros_FINAL-spreads.pdf

Aster 'Wavy Gravy' - 24 in. tall, fairly open habit. Flower rays violet, some of them twisted for a slightly informal appearance, "adding character and a third color", disk golden-yellow. Or, in: www.intrinsicperennialgardens.com, accessed 6.18.2016, introduced by them 2016, web: http://www.intrinsicperennialgardens.com/sitefiles/wp-content/uploads/IPG_Intros_FINAL-spreads.pdf

Campanula portenschlagiana CLOCKWISE®  - 8-12 in. tall x 4-8 in. wide. Flowers violet-lavender, throat paler. This is the first F1 strain of this species, "offering fast, uniform production...first year flowering - no vernalization period needed". Or, in: Syngentaflowers.com, accessed 6.18/2016, intro. 2016, http://www.syngentaflowers.com/country/us/en/Documents/Catalog/Syngenta%20Flowers%202016%20Perennial%20Catalog.pdf

Campanula cochlearifolia SWINGING BELLS™ WHITE and BLUE- 8-12 in. tall x 4-8 in. wide, dense, very compact. Blooms first year from seed. Flowers 100% under long day condition, choice of pure white or violet-blue corolla. Or, in: Syngentaflowers.com, accessed 6.18/2016, intro. 2016, http://www.syngentaflowers.com/country/us/en/Documents/Catalog/Syngenta%20Flowers%202016%20Perennial%20Catalog.pdf

Coreopsis grandiflora ANDIAMO™ - 12-16 in. tall x 6-8 in. wide. Flowers first year from seed, early in season thereafter, rays rich golden-yellow, dark red basal markings (5-10% surface), ray apex much notched and incised F1 seed strain. Or, in: Syngentaflowers.com, accessed 6.18/2016, intro. 2016, http://www.syngentaflowers.com/country/us/en/Documents/Catalog/Syngenta%20Flowers%202016%20Perennial%20Catalog.pdf

Cephalotaxus harringtonia 'Gold Splash' - habit spreading-mounded, decumbent, much as 'Duke Gardens' but having golden-yellow shoot tips. So: www.brokenarrownursery.com, accessed 6.12.2016,

Ginkgo biloba f. fastigiata 'Grindstone' ('Grind Stone') - 30 ft. tall x 5 ft. wide, fastigiate to narrowly columnar. Or: from a notable tree in Grinstone Lake, New York, USA.

Ilex glabra 'Gold Mine' - sport of 'Shamrock' with golden margins. Or: Gabe Cesarini, US Patent #14233

Populus tremuloides MOUNTAIN SENTINEL® 'JFS-Column' - 35 ft. tall x 8 ft. wide, fastigiate, bark silvery-gray. Leaves tremulous in wind  as species, showy golden-yellow in fall. USDA 3. Or, in: www.jfschmidt.com, accessed 6.15.2016, see http://www.jfschmidt.com/pdfs/mountainsentinelaspen.pdf.. This is a modern replacement for Populus alba 'Pyramidalis' (Bolleana poplar), having similar bark and habit but lacking silvery-white hairs below.

Acer campestre STREETSIDE™ 'JFS Schictel2' - 35 ft. tall x 18 ft. wide, "upright sweeping" ovoid, bark exfoliating and showy reddish-brown curls, superior to random seedlings. Leaves dark green in summer, yellow in fall. Japanese beetle resistant. Or, in: www.jfschmidt.com, accessed 6.15.2016,

Acer griseum FIREBURST™ 'JFS KW8AGRI' - 25 ft. tal x 18 ft. wide, upright ovoid, "predictable performance and speedy growth", more uniform, erect, and with superior branch strucuture than random seedlings. Leaves dark green, bright red in fall. Or, in: www.jfschmidt.com, accessed 6.15.2016

Carpinus caroliniana RISING FIRE™ 'Uxbridge' - 30 ft. tall x 15 ft. wide, more narrow and upright than species typical, columnar to narrowly ovoid, vigorous, uniform. Leaves reloanly bright red to orange shades with some yellow in fall. Hardy in Ontario, Canada where it originated.. So: www.jfschmidt.com, accessed 6.15.2016

Ulmus davidiana GREENSTONE™ 'JFS KW2UD' - 60 ft. tall x 40 ft. wide, upright and vase-shaped, classic elm shape, strong with open branch angles, vigorous. Leaves medium green, yellow in fall. Dr: Duth Elm Disease (DED) and phloem necrosis. Or, in: www.jfschmidt.com, accessed 6.15.2016, grown from seed in the northern part of this valuable species' range

Quercus bicolor BEACON® 'Bonnie and Mike' - 40 ft. tall x 15 ft. wide, narrowly columnar, dense, stoutly branched. Leaves light to medium green, yellow in fall. USDA 4. Or: Dr. Mike Dirr, cultivar named for him and his wife Bonnie Dirr.  In: www.jfschmidt.com, accessed 6.15.2016, see http://www.jfschmidt.com/pdfs/beaconoak.pdf

Viburnum plicatum OPENING DAY™ 'PIIVIB-II' - 5 ft. tall x wide, compact for the species which is often much taller. Flowers in baseball-sized and -shaped heads in pure white, these slightly green in bud. Leaves dark green, rich cabernet red in fall, heavily textured. USDA 5. Or: Plant Introductions Inc., intro. via Bailey Nurseries. Ns: name is suggestive of "opening day" when the baseball season begins their contests. Web: http://www.plantintroductions.com/openingday8482doublefileviburnum.html

Distylium CINNAMON GIRL™ 'PIIDIST-V' - 2-3 ft. tall x 2-4 ft. wide, mounded, somewhat decumnbent, "a more refined look than other Distylium on the market" (originator).  Leaves small, fine-textured, showy plum purple in new growth, maturing to bluish-green.  USDA 7, survived 4-6 deg. F. in above ground container without injury. Or: www.plantintroductions.com, selected 2013-14. accessed 6.15.2016, see http://www.plantintroductions.com/cinnamongirl8482distyllium.html

Distylium LINEBACKER™ - http://www.plantintroductions.com/linebacker8482distlylium.html

Salix  'Winter Glory', Salix 'Rabbit's Foot' - See http://hortsci.ashspublications.org/content/51/4/334.abstract

Salix x leucopithecia (S. gracilstyla x S. caprea) 'Winter Glory' - 15-20 ft. tall, a truly giant pussy willow, twigs reddish-brown. Flowers male, buds scarlet-red, catkins (aments) pinkish-silver opneing to silver, amongst the largest known aments or "pussies" in the genus, 2-3 in. long, bearing golden pollen with age. Cold hardy in Vermont, USA (USDA 4) with no damage.
Web: http://www.willowsvermont.com/wingl.html, accessed 6.25.2016. So: http://www.willowsvermont.com, accessed 6.25.2016

Salix alba 'Flame Yellow' - 12 ft. tall x 8 ft. wide, stems very bright golden-yellow with some orange tints in younger stems. Ns: may be a hybrid of S. alba and not a pure clone. So: http://www.willowsvermont.com, accessed 6.25.2016

Salix caprea 'Lemoines Improved' - Flower aments very numerous, yellowish-silver, more golden as pollen appears, male clone. Or: Lemoine Nursery, France. Apparently this escaped the major woody plant references. So: http://www.willowsvermont.com, accessed 6.25.2016, new 2016 intro. for them.

Salix caprea 'Ogon' - 15-20 ft. tall, slightly slower thsan species. Leaves smaller than species typical, bright yellow in spring, very undulate at times, later more green. Flower amends very silvery, female clone. Or: Japan. In: Vermont Willow Nursery says they obtained it from Dick Jaynes of Broken Arrow Nursery who obtained it from Asian plant collector Barry Yinger. So: http://www.willowsvermont.com, accessed 6.25.2016

Salix (S. caprea x ?S. cinerea) 'Showtime' (formerly 'S365') - 10-15 ft. tall x 305 ft. wide, very narrow, erect. Leaves 2-3 in. long x 1.0.1.5 in wide, dark green, oblong, veins prominet. Flower amends very golden-yellow at maturity, being male and pollen-bearing, pollen not viable (triploid). Or: University of Toronto, triploid. Sex: male. So: http://www.willowsvermont.com, accessed 6.25.2016

Salix eriocephala 'Vigorella' ('S25') - 15-20 ft. tall, habit very strong, up to twice species growth rate. Leaves slightly orange in new tips, later bright light green, paler midrib showing much constrast. Or: University of Toronto, cross of two species clones. So: http://www.willowsvermont.com, accessed 6.25.2016, new 2016 intro.

Salix (S. caprea x ?S. purpurea) 'Licorice Whip' - Stems purplish-black, thus licorice-colored in winter. Flowers silver, later dark brownish-red, male. Or: Steve Hottovy, Beyond Green Nursery. So: http://www.willowsvermont.com, accessed 6.25.2016

Pennisetum (ornamental) 'Tift 15', 'Tift 26', and others - See http://hortsci.ashspublications.org/content/51/4/444.full
and also http://horttech.ashspublications.org/content/23/4/525.full.pdf+html


Sedum 'Ayer's Rock' - leaves short ovate to suborbicular-ovate, very shallowly crenate, distinctly grey to greenish-grey (hence rock in the name), often tinged pink to red shades if given sun. Flower heads a mix of pale pink, violet-pink, magenta-pink, and medium pink shades, giving a dusky rich rose-pink look from a distance.


Click logo above or here for the new Coleus cultivars. Updated 5.26.2016

The following registratrions appeared in the CULTIVAR.ORG NEWSLETTER Vol. IV

Panicum virgatum 'Blood Brothers' - upright, vase-shaped, neat. Leaves bluish-green turning dark blood red by midsummer, very intense dark red shades into fall. Or: Dale Smith, St. Thomas, Ontario, Canada as sport of 'Heavy Metal'. So: www.riverbendnursery.com, accessed 5.17.2016

Cimicifuga (formerly Actaea) simplex 'Carbonella' - 1.2m tall, shorter than 'Brunette' at maturity. Leaves rich, purplish-brown. So: www.songsparrow.com, accessed 5.22.2016

Helleborus 'Best Man' (WEDDING PARTY™ Series) - flowers 2.0-3.0 in. wide, mauve0purple with slightly darker margins, later more dark dusky purplish-pink, veined darker tones. Or, in: www.waltersgardens.com, accessed 4.16.2016. Or: Hans Hansen hybrid, intro. 2014
Helleborus 'Blushing Bridesmaid' (WEDDING PARTY™ Series) -  flowers 2.0-2.5 in. wide, double, white with dark violet-red to taspberry-red picotee inside, rich flush on exterior, also veins in dark, dusky purplish-pink to violet-pink. Or: www.waltersgardens.com, accessed 4.16.2016. Or: Hans Hansen hybrid, intro. 2014
Helleborus 'Confetti Cake'' (WEDDING PARTY™ Series) - flowers 2.5-3.0 in. wide, double, white with heavy burgundy specklings in the central zone, covering 25-50% of surface.  www.waltersgardens.com, accessed 4.16.2016. Or: Hans Hansen hybrid, intro. 2015
Helleborus 'First Dance' (WEDDING PARTY™ Series) - flowers 2.0-2.5 in. wide, double, bright greenish-yellow becoming light-medium yellow with a subtle maroon to violet-red picotee. www.waltersgardens.com, accessed 4.16.2016. Or: Hans Hansen hybrid, intro. 2014
Helleborus 'Maid of Honor'  (WEDDING PARTY™ Series)
Helleborus 'Dark and Handsome' (WEDDING PARTY™ Series) - flowers 2.5-3.0 in. wide, dark dusky purplish-black to near black

Miscanthus sinensis 'Encore' - 4.5 ft. tall in foliage becoming 6 ft. in flower. Flowers earlier than most clones, making it useful for a longer period in northern areas, inflor. "coppery purple" becoming more creamy-tan with maturity and maximum show. Leaves dark green. Or: Walters Gardens, intro. 2015, www.waltersgardens.com, accessed 4.18.2016

Ipomoea indica var. acuminata 'Daybreak' - leaves yellowish-green, showy.  Unlike I. batatas 'Marguerite' this plant produces abundant, ornamental flowers of 5.6cm width in RHS 78C, 76A,&5C, 75D, and 77A purple with some shades in the violet-purple realm. Or, pat: US# 26719 on May 10, 2016 to Luen Miller, Santa Cruz, California, USA as whole plant mutation. It can be used as an annual, tropical flowering and foliage plant, or tropical bedder.

Phlox SWEET SEDUCTION™ BLUE, SWEET SEDUCTION™ PINK (P. divaricata x ?, said to be "interspecific") - 15-20 in. tall, smaller than most P. paniculata, mounding to mounding-spreading habit, very floriferous, medium vigor, early in season. Or, in: www.dummenorange.com, accessed 5.18.2016

Cercidiphyllum japonicum 'Dawes Ascension' - 40-60 ft. tall x 20-30 wide. Young trees densely columnar, older plants more pyramidal, narrower than species typical. Or: Dawes Arboretum, bef. 1993, http://dawesarb.arboretumexplorer.org/taxon-20758.aspx, accessed 5.16.2016

Liquidambar styraciflua FAME FOREVER 'Roemer 4' - leaves with narrower, longer appearing lobes, thus more deeply lobed, rich dark red to dark purplish-red in autumn.  Or: Roemer, Holland

Diselma archeri 'Read Dwarf' -1 ft. tall x 2 ft. wide, groundcover conifer. Leaves rich green. USDA 8. Suitable where hardy like any dwarf Chamaecyparis or Juniperus clone. Or, in: Iseli Nursery, www.iselinursery.com, accessed 5.22.2016

Picea 'Big Berta' (P. glauca 'North Star' x P. pungens 'Montgomery') - 12 ft. tall x 6 ft. wide, narrowly pyramidal to conical, a sort of massive Alberta spruce, hence "big berta", intermediate vigor, compact to semi-dwarf, something like a perfect bluish-green Christmas spruce. Or, in: Iseli Nursery, www.iselinursery.com, accessed 5.22.2016, their own selection

Picea obovata 'Arctos'- 10 ft,.tall x 8 ft. wide, pyramidal. Leaves rich bluish-green to greenish-blue, probably bluer than most seedslings USDA 2 is a big plus for some countries and states. Or, in: Iseli Nursery, www.iselinursery.com, accessed 5.22.2016, their own selection

Pinus densiflora 'Harui' - 20 ft. tall x 15 ft. wide. Or: Zenhichi Harui, Washington, USA after1908 from his homeland of Japan's own seed. His son Junkoh, created Bainbridge Gardens, Winslow, Washington USA in 1958 and worked with Iseli Nursery, Boring, Oregon which has named and preserved this clone with "sweeping artistic branching with an open form that reveals the colored bark". Unfortunately it often take a tree from 1908 to judge which one have the finest bark colors.

Betula utilis var. jacquemontii 'Tickle Creek' - 6 ft. x 4 ft. wide, slower, dwarf. Bark copper colored. Leaves "coarse, lacy, deeply cut". Or, in: Iseli Nursery, www.iselinursery.com, accessed 5.22.2016, their own new introduction 2015 as witches broom on a large mature tree at their Tickle Creek Farm.

Diervilla lonicera EARLY BURGUNDY™ 'Gre Earl Bur' - 3-5 ft. tall x wide. Leaves dark burgundy red in new growth, becoming dark green. Flowers apparently typical. Web: www.gardendebut.com, accessed 5.22.2016, https://issuu.com/gardendebut/docs/2016_catalog-online/1

Ligustrum ovalifilium NANTUCKET PRIVET™ 'Grenanpriv' - 10-15 ft. tall x wide, vigorous, semi-evergreen where hardy. Leaves dark greeen, yellowish-green below, pale green overall. USDA 5 hardy. Web: www.gardendebut.com, accessed 5.22.2016,https://issuu.com/gardendebut/docs/2016_catalog-online/1

Chaenomeles speciosa RED PREMIER™ 'Greredpre' - 3 ft. tall x 4 ft. wide, dense yet vigorous, compact with maturity, intertwining beanchlets. Flowers early, medium to medium-dark red, double, cup-shaped, showy golden stamens. Web: www.gardendebut.com, accessed 5.22.2016, https://issuu.com/gardendebut/docs/2016_catalog-online/1

Mahonia confusa INDIGO FLAIR™ 'S-fg-3-018' - 3-4 ft. tall x wide, compact, subglobose. Leaves bluish-green. Flowers, fruit abundant. Web: www.gardendebut.com, accessed 5.22.2016, https://issuu.com/gardendebut/docs/2016_catalog-online/1

Nandina domestica ALL-A-GLOW™ 'BurgundyWine' - 3 ft. tall x wide, compact. Leaves bright burgundy to violet-red in spring, becoming green with maturity, often mottled green on red along the midrinb and base before becoming green, leaves very narrow, linear-elliptic to linear. Web: www.gardendebut.com, accessed 5.22.2016, https://issuu.com/gardendebut/docs/2016_catalog-online/1

Photinia FIRE UP!™ 'Parsur' - Web: www.gardendebut.com, accessed 5.22.2016, https://issuu.com/gardendebut/docs/2016_catalog-online/1

Physocarpus opulifoliua CINNAMON STICK™ 'Grecinstick' - 5-6 ft. tall x wide, compact, well-branched, stems red to olive tinged red, showy. Leaves cinnamon-copper to brownish-organge at first, veined green, later more medium green with upper portions in these orange to brown tones, later dark olive green, perhaps more incised than typical species. Web: www.gardendebut.com, accessed 5.22.2016, https://issuu.com/gardendebut/docs/2016_catalog-online/1

Pieris japonica SOUTHERN LADY™ 'Greprs' - 4-5 ft. tall x wide, vigorous under hot climates condition, more so than other locally tested cultivars. Leaves dark green. Flower corolla white, calyx lime green, no red or pink tints, semi-pendulous infl. More adapted to southern, hot and humid US climates, including parent location Texas than most clones, mainly because of root rot and leaf spot resistance. Pat: US# 23584 on May 7, 2013 to  Harry Smutzer, El Campo, Texas and Mark Rainey, Needville, Texas as open-pollinated seedling of 'Temple Bells'. Roots 89-90% from cuttings in originator's trials. Web: www.gardendebut.com, accessed   5.22.2016, https://issuu.com/gardendebut/docs/2016_catalog-online/1

Buddleia VANILLA TREAT™ 'Grevantrt'- 3-5 ft. tall x wide, compact, neat. Leaves light to medium green. Flower corolla near pure white, light fragrance. Web: www.gardendebut.com, accessed 5.22.2016

Albizia julibrissin 'Clemensis' - more cold hardy, tolerant in Vienna, Austria where typical species dies, possibly to -20 C.. Or: Mr. Bruckmoser

Buxus microphylla var. japonica BABY JADE 'Grejade' - 3 ft. tall x wide, subglobose to mounded, dense with maturity, shorter internodes than variety typcial,  averaging just 6mm, moderate growth rate.. Leaves small, 1.8cm long x 0.8 wide, elliptic, base cuneate, apex obtuse, dark green all year, not bronzing. USDA 5. Or, pat: US #26656 on April 26, 2016 to Jane Marie Kubala, El Campo, Texas, USA and Bill Bar, Rosenberg, Texas, USA as sport of 'Gregem' in 2010.
Web: http://www.gardendebut.com/plantName/Baby-Jade-Boxwood

Pittosporum tenuifolium 'Seaside' - 45cm tall x 40cm wide (one year), compact, denser than parent 'Golf Ball', branchlets at narrower acute angles compared to 'Elfin'. Leaves oblong, undulate, 2.9cm long x 1.2cm wide, narrower than 'Golf Ball'. Pat, or: US# 26713 on May 10, 2016 to Luen Miller, Santa Cruz, California, USA as seedling of 'Golf Ball'

Gardenia jasminoides 'Genie-2' - dense, low-growing, 60cm tall (2 years). Leaves dark green, 60mm long x 15mm long. Flowers 5cm wide, petals 30mm long x 20mm wide, double in 3 whorls. Prop: roots easily from cuttings. Pat, or: US# 26734 on May 17, 2016 to Allyn Cook, Gainesville, Florida, USA as seedling of stockin Alachua, Flora.

Nyssa sylvatica 'Isabel Grace' - weeping. Leaves rich, dark red in fall, 11.0cm long x 4.0cm wide, margin tinged red at times.

Acer negundo 'Tadevsz Szmanowski' - leaves very deeply incised, typical bright, light green, some lobes cut to the midrib and others to 0.5-1.5cm deep from the midrib. photo: http://www.drzewa.com.pl/7505/klon-jesionolistny-tadeusz-szymanowski.jpg

Acer capillipes 'Honeydew' - new growth bright reddish-orange to coral-melon tones, youngest tips the most red. Photo: http://www.esveld.nl/htmldiadu/a/acchon.htm, accessed 5.17.2016

Acer saccharum 'Kristins Dissected' - 40 ft. tall x 20 ft. wide. Both narrowly columnar and with incised, dissected blades, yellow or orange shades in fall. Ls: Dawes Arb. 2012.

Acer palmatum 'Debbies Golden Splendor' - leaves rich yellow most of the summer.

Crataegus succulenta 'Gregory Canyon' - 3-4m, large shrub to small green, Flowers, fruit very abundant. Or: named from a particularly good population in Gregory Canyon near Boulder, Colorado, USA. Not all stock seems to be as showy.

Fagus sylvatica 'Goldzack' - leaves golden-yellow becoming green by summer.


Tilia cordata 'Debra's Delight' - leaves splashed and speckled yellow, cream, white, and green. Or, in: www.handynursery.com, their own introduction, accessed 5.16.2016

Pinus resinosa 'Dodge Ball' - dense, globose, growth rate 1-3 in. a year. Leaves light green, shorter, and more softer in texture than species typical. Or: Dennis Dodge, found as broom. So: http://www.coniferkingdom.com, accessed 5.16.2016

Pinus strobus 'Blue Petticoats' - narrowly weeping. Leaves bluer than 'Pendula, long. Or: Jim Boyko, Boyko, Nursery as 'Pendula' seedling. So: http://www.coniferkingdom.com, accessed 5.16.2016

Pinus strobus 'Blue Tresses' -  Similar to 'Blue Petticoats'. So: http://www.coniferkingdom.com, accessed 5.16.2016

Sciadopitys verticillata 'Tsai Cheng' - ovoid, semi-dwarf, 3-5 inches growth a year, dense. So: http://www.coniferkingdom.com, accessed 5.16.2016

Sciadopitys verticillata 'Blizzard Bound' - much more cold hardy. So: www.handynursery.com, accessed 5.16.2016

Styrax japonicus 'Martins Red Star' - leaves purplish-red, apparently like 'Evening Lights'

Liquidambar styraciflua 'Black Parking' - fall color a very rich, dark blackish-red

Thuja (plicata x standishii) 'BFC68' - 4.25 m tall x 2m wide (10 years), slightly smaller than parent 'Green Giant', more compact and denser than parent 'Green Giant', more highly branched than most hybrids, 7.2 tertiary branchlets per stem vs. 2.2 per secondary on 'Green Giant, 10 quarternary branchlets vs. zero for 'Green Giant',  lateral terminals often pendulous, "soft feathered textrure", uniform. Leaves when mature darker green than 'Green Giant' (RHS 139A) versus RHS 147A and yellowish-green for 'Green Giant'.  Pat, or: US# 26684 on May 3, 2016 to Benjamin Case Jr, Suffolk, Virginia, USA as  sport of 'Green Giant' at Old Courthouse Nursery, Warsaw, North Carolina 2002.Lsp: JC Raulston Arboretum.

Ginkgo biloba 'Folkert' ('Folkert's Select' invalid) - slow, dwarf. Leaves smaller. So: www.handynursery.com, accessed 5.616.2016

Chionanthus retusus 'Gallant' ('Gallant's Form' invalid) - spreading to semi-pendulous. So: http://www.bloomriver.com, accessed 5.16.2016

Buxus sempervirens 'Wonford Page' - new growth heavily suffused yellow (40-90%), becoming sectored and striped cream to light yellow at 30-50% surface. So: http://www.bloomriver.com, accessed 5.16.2016

Quercus macrocarpa 'Mother Load' - dwarf from witches broom, dense, globose.

Quercus illicifolia 'Tromp Ball' ('Nana' illegitimate post-1952 Latin name) - 2-4m tall by wide, globose, usually grafted high on standard. Or: Arboretum Trompeberg, The Netherlands

Quercus palustris 'Windischleuba' - leaves finely mottled and speckled white to cream, at 50% surface, some blades more mottled in sectors only, favoring one side of the blade or the other. Lsp: Hillier Arb., Trompenberg Arb. li:  Jablonski, Ginkgoblätter, 78: 14 (2000) per oaknames.org, accessed 5.18.2016
Photo: http://gardenbreizh.org/modules/pix/cache/photos_590000/GBPIX_photo_592742.jpg

Quercus ilex 'Olive Pillar' - 20m tall x 8m wide, more narrowly pyramidal to conical, not strictly a pillar. Or: Hillingdon, Norfolk, England, chance seedling. So: www.blueberrynursery.com, accessed 5.16.2016

Quercus 'Tromp Deerpon' - web: http://www.internationaloaksociety.org/content/quercus-%E2%80%98tromp-deerpon%E2%80%99-extraordinary-hybrid

Quercus 'Fire Water' (Q,. rubra x Q. coccinea) - leaves intermediate in shape between two parents, rich orange to red shades in fall. Or: Jabonski, Starhill Forest, Illinois, USA from a group of hybrid seedlings c. 2013. source: www.bluebellnursery.com, accessed 5.16.2016. Herb: http://www.oaknames.org/images/nomstand/NO5C5030.jpg


Selaginella tamariscina 'Beni Kujaku'. At the recent open house at Plant Delights we just had to snap this mini, ferny perennial with amazing wine red to maroon markings over the species' normally luxuriant, green foliage. It's been hardy for them in USDA 7b since 2008 but must be keep fairly dry in winter.. Click image to enlarge.


Calathea leitzei 'Fusion White' - leaves elliptic-lanceolate to broadly ellptic, medium to dark green, heavily and irregularly margined and sectors in a feathery pattern in pure white (35-55% surface), smaller sectors of pale green and greenish-gray appear (5%) but predominantly bicolored and showy. It has a superficial resemblance to Stroemanthe 'Triostar' but without the bold red back of the leaf. Or, pat: US# 26187 on Aug. 21, 2013 to Taiyan Yam, Apopka, Florida, found in Malaysia, as sport in 2007. In: Biostok.com, 2014  to US trade. Above image is from Cultivar.org 2016 Indoor Trials, a part of our active research program that your subscriptions fund. Click image above to enlarge.


Polygonatum odoratum 'Byakko'. Meaning "white tiger", this lovely Japanese selection introduced by Barry Yinger is stunning for it's unique variegation pattern over a soft  slightly greyish-green leaf. Click image to enlarge.


FAGU001 Fagus grandifolia 'White Lightning' (Mark Weathington, HortScience) - paid access to cultivar release.
Click image above to enlarge. Imaged by cultivar.org staff at JC Raulston Arboretum, July. 2015.


Davidia involucrata 'Lady Dahlia' - leaves irregularly centered yellowish-green to chartreuse aka "gold", marginal serrate tips reddish in sun, chimera about 20-55% of surface, very irregularly in terms of multi-branched sectors or a very open "tree" of paler tissue. Click image above for a shot from the Raulston Arboretum (April 2016). It is sold by Buchholz and Broken Arrow nurseries in the US this spring of 2016 as well as Esveld.nl in Europe. It should not be confused with 'Lady Sunshine' with a massively, truly yellow to creamy-yellow. If our math holds here, we now have a shocking seven cultivars of variegated Davidia and still not one that blooms from young, tiny trees! You get what can get, I suppose.


Agave parryi subsp. truncata 'Bed of Nails' - Also from Plant Delights is a new registrant of this normally hostile subspecies. It might be voted the new cultivar I'd least like to step on by accident in the garden at night. Or....best new cultivar for keeping out the annoying neighbors and their annoying, little yappy dogs. It is a dense, clumping dwarf version of the popular subspecies that Plant Delights discovered in a batch of tissue cultured stock. Please click image to enlarge...very carefully. 
 
Hamamelis vernalis PURPLE PRINCE™ 'KLMKK' - 7-10 ft. tall x 6-8 ft. wide (10 years), erect, vigorous.. Flower tepals deep rosy lavender, appearing a lavender-purple to violet from a distance. Leaves green, becoming orange and red shades in fall, dropping cleanly before next spring's floral show. Or: Roy Klehm, introduced www.songsparrow.com, accessed 4.6.2016

Berberis thunbergii 'Fireball' - 1-2 ft. tall x 1-2 ft. wide (5 years), later larger, dense, compact, subglobose to mounded. Leaves bright "fiery red", more of a pinkish-red to rose-red than a dark maroon-red of older clones. Rust resistant to date. Or: Czech Republic, US Patent #21000 Web:
http://planthaven.com/plant/berberis-fireball/, accessed 4.6.2016

Hibiscus syriacus PEPPERMINT SMOOTHIE™ 'DS04PS' - 8 ft. tall x 4 ft. wide, dense, freely branched. Leaves dark green, Flowers fully double, petals and petaloides variable in size, somewhat undulate, mix of pale pink and darker pink shades to some near reddish-purple, effectively all pink from a distance but bicolored on close inspection, early season, uniform, floriferous, long bloom period. Or, pat: US# 26551 on March 29, 2016 to Don Shadow, Winchester, Tennessee as open-pollinated cross.
Source, photo:
http://www.greenleafnursery.com/index.cfm/fuseaction/plants.plantDetail/plant_id/6138/index.htm, accessed 4.6.2016

Caladium 'Passionista' - 13 in. tall. Leaves 9.4 in. long x 6.2 in. wide, lance type, undulate, center mostly bright medium pink (not harsh not magenta bright), veined darker pink and red tones in a subtle manner, this zone about 90-98% of blade, margin medium green (2-10% surface) with a paler mint green transition zone (1-5% surface). Proven vigorous and durable for mass production. Or: Dr. Zhanao Deng, University of Florida: 
https://edis.ifas.ufl.edu/pdffiles/EP/EP52700.pdf

Caladium 'Sizzle' - 14.4 in. tall. Leaves 7.9 in. long x 6.3 in. wide, broad lance type and a much wider blade than 'Passionista', pink-centered (80-98% surface), darker reddish-pink veins more bold and prominent than in 'Passionista', margins a medium green to mint green (2-7% surface).
Proven vigorous and durable for mass production. Or: Dr. Zhanao Deng, University of Florida: https://edis.ifas.ufl.edu/pdffiles/EP/EP52700.pdf

Buxus microphylla PETITE PILLAR™ 'MonAlex' - 2-3 ft. tall x 2 ft. wide, dwarf to semi-dwarf, columnar, very dense, requiring little or no shearing as hedge or narrow column. Leaves glossy, medium green. USDA 5.
Web: http://www.monrovia.com/plant-catalog/plants/5162/petite-pillar-dwarf-boxwood , accessed 4.6.2016

Buxus sempervirens JADE PILLAR™ 'Furore' - 4-5 ft. tall x 2-3 ft. wide, columnar, useful for hedge purposes. Leaves dark green. US# 21319

Arbutus 'MBAV13' - variegated sport of 'Marina'

>>>>>
 
Gardenia jasminoides BITTY BOUTONNIERE™ 'Leethree' - 2.5 ft. tall x 3.5 ft. wide, compact, mounded. Flowers single, radial ("daisy-like"), very small (5.5cm wide), highly scented. Intro. Home Garden TV (HGTV) 2015. Or, pat: Robert Lee, Independence, Louisiana, US PPAF files 8.11.2014, open-pollinated from 'Daisy'.

Gardenia jasminoides 'Leefour' - 60cm tall x 50cm wide, upright, vigorous yet remaining compact, more adpted to US southern gardens, more heat tolerant, larger and stronger than parent 'Daisy'. Leaves glossy, dark green, 6.0cm long x 2.8cm wide. Flowers highly scented. Or, pat: Robert Lee, Independence, Louisiana, US PPAF files 8.11.2014, open-pollinated from 'Daisy'.

Gardenia jasminoides ScentAmazing™ 'Leetwo' -  3-4 ft. tall x 4 ft., wide, habit compact, very dense, smaller and stronger than parent 'Daisy'. Leaves darker green and more glossy than parent 'Daisy'. Flowers small, very highly scented, single, radial petals, blooming early and over a long period. Very heat tolerant, more suitable for US soutner garden conditions. Or, pat: Robert Lee, Independence, Louisiana, US PPAF files 8.11.2014, open-pollinated from 'Daisy'. Intro: Southern Living Plant Collection.

Abelia MISS LEMON™ 'Hopley's Lemon Zest' - 3 ft. tall x 4 ft. wide. Flower corolla light pink. Leaves irregularly margined golden-yellow at 5-15% surface, this chimera later more ivory-yellow to cream by the second year. In: Southern Living Plant Collection. Web:
http://southernlivingplants.com/images/uploads/fact-sheets/abelia_miss_lemon.pdf, accessed 4.6.2016

Stipa gigantea 'Lauren’s Cold Hardy' - 5-6 ft. tall x 24 in. wide. More cold hardy, proven in USDA 5. Or: Lauren Springer Odden, Fort Collins, Colorado, USA, grown from seed collected in a German botanic garden, proven cold hardy in Fort Collins. So: www.highcountrygardens.com, accessed 5.22.2016

Achillea millefolium 'Sonoma Coast' - 12 in. tall x 18-24 in. wide, generally smaller height than species typical, stoloniferous and making a fine ground cover. Not all A. mill's are stoloniferous and some are more clump-forming.  Leaves light green. Flower rays white, disc flowers grayish-white, giving a uniform shade from a distance. So: www.highcountrygardens.com, accessed 5.22.2016

Veronica MAGIC SHOW® WHITE WANDS - 14-16 in. tall x 16-20 in. wide. Flower color near pure white, floriferous. Leaves dark green, glossy, "better disease resistance than older Veronica" (Walters Gardens). Or, in: Walters Gardens, intro. 2015, their own introduction.

Colocasia esculenta 'Black Ripple' - leaves dark reddish-purple to blackish-purple, more highly "ripplied" or rugose than most existing cultivars, very puckered, bullate, and deeply textured betweent the veins. Intro: Southern Living Plant Collection c. 2015.

Colocasia esculenta LITTLE BLACK MAGIC™ - 1-2 ft. tall x 2 ft. wide, much shorter than most dark-bladed clones. Leaves much as 'Black Magic', a dusky purple above, grayish-purple to grayish below with darker, more red veins below. In: Southern Living Plant Collection.

Salvia microphylla 'Killer Cranberry' - 24-36 in. tall x 18-24 in. wide, compact Leaves light, bright green. Flowers a rich violet-magenta to violet-pink. In: Southern Living Plant Collection, introduced 2016

Salvia microphylla 'Little Kiss' - flower bicolored in white and violet-red to red, much as 'Hot Lips' but  more compact and "better behaved" than that popular clone. In: Southern Living Plant Collection, intro. 2016.

Www.Terranovanurseries.com, has announced the following new cultivars for 2016-17 that are pending registration:
Coleus FANCY FEATHERS™ BLACK
Coleus FANCY FEATHERS™ PINK
Coleus FANCY FEATHERS™ COPPER
Coleus TERRA NOVA 'Allspice'
Coleus TERRA NOVA 'Quetzal'
Coleus TERRA NOVA 'Lovebird'
Coleus TERRA NOVA 'Macaw'
Coleus TERRA NOVA 'Lavish Lime'
Coleus TERRA NOVA 'Lumen'
Coleus TERRA NOVA Maharja'
Coleus TERRA NOVA 'Mystic Light'
Coleus TERRA NOVA 'Red Ripple'
Coleus COLOR CLOUDS
'Be Mine'
Coreopsis HONEYBUNCH 'Red and Gold'
Coreopsis 'Madras Magic'
Echinacea CARA MIA ROSE
Echinacea KISMET INTENSE ORANGE
Echinacea KISMET RASPBERRY
Echinacea PUFF VANILLA
Geum RUSTICO ORANGE
Heuchera NORTHERN EXPOSURE LIME
Huechera HAPPY HOUR LIME
x Heucherella 'Plum Cacade'
Knipofia 'Poco Sunset'
Tiarella SYLVAN LACE
Veronica VENTURE BLUE
Lithodora GOLD 'N SAPPHIRES


Sisyrinchium angustifolium SASSY GRASS® - 18 in. tall x wide. Flowers light violet-blue, effectively pale blue. In: Southern Living Plant Collection, intro. 2016.

Loropetalum chinense PURPLE DAYDREAM™ - 2-3 ft. tall x 3-4 ft. wide, mounded, dwarf, compact. Leaves dark maroon-red. Flower reddish-magenta. In: Southern Living Plant Collection, intro. 2016

Mahonia 'Marvel' - flower heads very large in massive whorls, typical yellow. Leaves dark green, notably "frond-like", blades appear to be somewhat short and narrow from the images. In: Southern Living Plant Collection, intro. 2016


Fleuroselect.com has given their prestigious GOLD MEDAL to the following new perennials. Due to time and funding limitations OROC is not accepting regisrations in annual bedding plants except for a few genera under current study, including Coleus, Helianthus annuus, and Cosmos.

Lupinus polyphyllus 'Mini Gallery Blue' - 2017.

Bellis perennis 'Bellina'

Bellis perennis 'Melbella Salmon' - 2016 award

Penstemon barbarus 'Twizzle' - 70-80cm tall, taller than most current hybrids and thus useful for cutting. Flower corolla bright scarlet red, calyx dark red to purplish-red. Or: van Hamert.

Calamintha nepeta 'Marvelette Blue' -20cm tall x 30cm wide, compact, dome-shaped, branching better and with smaller side shoots than all known strains to date. Prop: blooms about 12 weeks from seed. Flower corolla intense violet-blue, effectively a bluish-lavender from a distance. Or: Van Hamert

Echinacea purpurea 'Feeling PInk' - Or: H.M. Clause, 2016 Fleuroselect Gold

The following were presented in CULTIVAR.ORG Newsletter III:

Liriope PRECIOUS METALS 'Pontovia'  - 12-18 in. tall x 24 in. wide. Leaves variegated in gold stripes, mostly close to the margins, additional lime green striations toward the center in young leaves, later silver stripes on dark green, variable appearance. Flowers mostly violet (RHS 88B) whereas their standard for L gigantea hort. is RHS 85B, this selectioj being a darker violet shade, inflorescence 19-21cm long (18-18cm in thier parent stock), having a longer peduncle and larger raceme. Or: Ponto Nursery, Vista, California, from open pollinated seed in 2007, perhaps of L. muscari Gigantea Group. It should be noted that the taxon L. gigantea is an invalid species, not known in wild despite the claim it is native to China and Japan in the application. It has never been documented in the wild and originated in France. Pat: US# 25670 on June 30, 2015 to Robert Ponto. 

HIbiscus 'Mars Madness' - http://www.perennialresource.com/encyclopedia/view/?plant=2596, accessed 3.29.2016,

Carex praegracilis 'Chia' - 6-8 in tall, dwarf, carpeting, rhizomatous as is the species, tolerating some foot traffic once established, generally a useful step-stone walkway filler, Leaves rich green. Differing from the species mainly in shorter stature and fine texture. 
Or: Robert Abe, Chia Nursery. In: smgrowers.com, accessed 3.29.2016

Monarda 'Rockin' Raspberry' - 20 in. tall x wide. Flower heads 2.0-2.5 in. wide, stems strong, well-branched, corolla rich "deep raspberry purple" or magenta-violet. Leaves very dark green for this genus. Or: Walters Gardens, intro. 2015

Phlox 'Opening Act Blush' - 18-20 in. tall x wide. Flowers quite early, corolla light lavender-pink, darker eye, sporadic rebloom in summer and occasionally fall.  Leaves glossy green, mildew resistant. Handles both heat and humidty. Or: Walters Gardens, intro. 2015 via Proven Winners:
http://www.waltersgardens.com/plants/view/?plant=2564, accessed 3.30.2016

Helianthus maximiliana UNDAUNTED® 'Lemon Max' - 4-5 ft. tall x wide. Flowers very numerous, rays clear, clean medium yellow. Or: Lauren Springer Ogden, Fort Collins, Colorado, USA. Aw: Plant Select. Birds are known to like the seeds and bees frequent the nectar in the flowers. In: www.highcountrygardens.com, accessed 3.30.2016, listed as "Exclusive".

VIburnum cassinoides BUCCANEER™ 'KLM B' - 4-6 ft. tall x 4-7 ft. wide, globose. Leaves medium green, a nice mix of orangish to red shades in fall, usually then with a paler, yellowish midrib. Flowers creamy-white, showy, scented. Fruit a blend of green to pink, red, blue, and later black. Durable as many in this genus and will enjoy boggy, wetter situations too. Or: Roy Klehm, Song Sparrow Nurseries, before 2005, popularity and availability improved about 2015.

Colocasia esculenta 'Tropical Storm' - compact, 24-30 in. tall x wide, stems very dark purple, leaves dark green tinged purple to medium dusky purple, boldly centered white to cream in a branched tree-like pattern (15-40% surface), margins tinged dusky purple, very dusky, greyish-purple below, the first cultivar to combine the white medial markings (ie. 'White Lava') with purple foliage pigments ('Black Magic'). Older leaves tend to be more dusky purple with only whitish to pale green secondary veins and midrib, lacking the large central zone. Or: Dr. John Cho, Hawaii. In: Plant Haven to the US, 2015, first retail source seen by us (Plant Delights) in 2016

Chlorophytum 'Gold Nugget' - www.cistus.com, accessed 3.29.2016



Euonymus alatus 'Firecloud' - 4-5 ft. tall, smaller than species typical. leaves dark green, "evenly splashed with cream". www.cistus.com, accessed 3.29.2016, named by their

Ficus afganistanica 'Green Filigree' - 15-20 ft. tall, similar to species. Leaves "intricately lobed, filigreed...deep green". Or, in: www.cistus.com, accessed 3.29.201- www.cistus.com, their own introduction

Ficus afganistanica 'Dwarf Green Filigree' - 3 ft. tall in many years, smaller than species and 'Green Filigree'. Leaves finely incised, filigreed, lacy. Or, in: www.cistus.com, accessed 3.29.2016, their own introduction.

Aucuba japonica 'Alabai' - 8 ft. tall or more. Leaves 6 inches long, dark green, spotted creamy-yellow, swirling somewhat. Male. Or, in: www.cistus.com, Spring 2016 onlne catalog, accessed 3.29.2016, their own selection from "an old, north Portland watering hole"

Aucuba japonica 'Clear Picture' - 4 ft. tall x 3 ft. wide, dense, subglobose, slightly upright. Leaves "clear, yellow variegations on dark green". Or, in: www.cistus.com, Spring 2016 onlne catalog, accessed 3.29.2016

Aucuba japonica 'Ova Easy' - 6 ft. tall. Leaves all gold, 4-6 in. long, "spring green and velveteen gold when exposed to more light". Or, in: www.cistus.com, Spring 2016 onlne catalog, accessed 3.29.2016, sport of 'Overlook' in all gold.

Aucuba japonica 'Overlook' - 6 feet tall or more. Leaves large, glossy green, bordered cream. Male. all from www.cistus.com, Spring 2016 onlne catalog, accessed 3.29.2016, a sport found in the Overlook neighborhood of North Portland, Oregon, USA.

Buxus sempervirens 'Golden Swirl' - www.cistus.com, accessed 3.29.2016

Tradescantia sillamontana 'Hogans Hero'' - www.cistus.com, accessed 3.29.2016

Yucca schottii 'Chiricahua High' - www.cistus.com, accessed 3.29.2016

Viburnum opulus 'Exubertant' - www.cistus.com, accessed 3.29.2016

Pittosporum illicoides 'Strappy' - www.cistus.com, accessed 3.29.2016

Sedum spathulifolium 'Serpentine Blue' - www.cistus.com, accessed 3.29.2016

Sedum spathulifolium 'Serpentine Point' - www.cistus.com, accessed 3.29.2016

Philadelphus mexicanus 'Rosemary Brown' - www.cistus.com, accessed 3.29.2016

Opuntia 'Golden Globe' - www.cistus.com, accessed 3.29.2016

Opuntia basilaris 'Isabella Blue' - www.cistus.com, accessed 3.29.2016

Ophiopogon planiscapus 'Way Good Variegated' - www.cistus.com, accessed 3.29.2016, their own selection

Kalanchoe beharensis 'Solidad Shadow' - http://www.smgrowers.com/products/plants/plantdisplay.asp?strLetter=K&plant_id=4119&page=, accessed 3.29.2016, thier own clonal selection.

Strelitzia juncea 'Spoons' - http://www.smgrowers.com/products/plants/plantdisplay.asp?plant_id=3977, accessed 3.29.2016,  offered by them in 2015 but now discontinued.

Phlox paniculata MAIDEN AMERICAN™ 'Jordan Schuster' - 30cm tall, internodes to 2cm long, compact, highly branched. Flower corolla well-scented, pin-wheel banded in shades of rich medium pink and white or rosy-white or medium pink suffused white or very pale pink atr the tip, patterns varying.  Or: Richard Saul, ItSaul Plants, Georgia, USA, US Plant Patent #26352 on Jan 26, 2016. Photo:
http://www.itsaulplants.com/_ccLib/image/random/DETA-80.jpg

Alternanthera ficoidea 'Mimosa' - 12-18 in. tall. leaves dark green, rugose, heavily sectored medium to light pink with some cream and peachy pink shades (chimera about 20-90% surface, variable), much like a paler and subler 'Parttime' and with a similar variegated pattern . US PP: 23451, Or: ItSaul Plants

Phlox 'Blind Lion' - 70cm tall, compact, erect. Flowers "flowerless" (remain fixed in bud stage), corolla dark purple, mostly valuabled for very dark glossy purple bracts or calyx which forms a fine-textured mass.
Or, patent: US# 26255 to Jan van Leeuwen on Dec. 22, 2015, as sport 2011. Ns: it has been accepted as a cultivar at the US Patent Office and that has established that taxonomic status. However it is described elsewhere as a Registered Trademark in such references as:
http://www.cnb.nl/EN/Pages/Product-Catalog.aspx?ProductId=260, accessed 3.29.2016
Photo:
https://www.veilingrheinmaas.com/fileadmin/vrm/bilder/newsletterAktuell/2015/31_2015/Phlox_Blind_Lion.jpg

Dicentra 'Love Hearts'

Agave (A. bovicornuta x A. colorata) 'Risner Bill' - http://www.smgrowers.com/products/plants/plantdisplay.asp?plant_id=3945, accessed 3.29.2016, first offered by them 2015

Hibiscus
(H. moscheutos x H. coccineus) 'Purple Hearts'  - 2.5-3.5 feet tall, compact yet vigorous, "uniform breaking habit" (patent app). Flowers numerous from midsummer to frost, corolla dark red. Leaves cordiform-ovate (heart-shaped), dark blackish-purple, margined relatively smoothCold hardy to -30 deg. F.
Or, pat: US Patent applied for on March 10, 2016 by Grecthen Zwetzig, Lindsay, California involving Fleming bred selections of the species noted above, part of a 68 year long breeding program, first bloomed and selected as such in 2008.  

Canna 'Fire Dragon' - http://planthaven.com/plant/canna-fire-dragon/, accessed 3.29.2016


Bergenia 'Flirt' - click image above to enlarge. 6 in. tall in foliage, dwarf for this genus but not slow, about 10 in. tall in bloom. Leaves about 5 per rosette, 85.cm cm wide by 38mm wide, obovate, dentate, acute, reduced in size, glossy to semi-glossy,rich burgundy to reddish-brown at first, can be blackish-red in strong light or in winter cold, later more bright bright green. Flower corolla bright cerise-pink (RHS 64C, base 64A, reverse 64D), hot pink but not magenta, calyx darker pinkish-red to near red (RHS 183A), very floriferous, 13 cymes of 12 flowers each per plant, the inflor. 7cm long x 5.5cm wide. Or: Terra Nova Nurseries, intro. 2015. Pat: US# 26355 on Jan. 26, 2016 to Harini Korlipara, planned cross, assigned to Terra Nova Nurseries.

Haworthia 'Seastar'

Agapanthus africanus 'Little Dutch Blue' - 18-24 in. or about 70cm tall, short, compact, scapes strong, upright. Flower numerous (floriferous), notably star-shaped (not wide campanulate), long bloom period (longer than 'Peter Pan', corolla pale blue overall, outside tinged medium violet-blue, internal of tepals slightly centered in violet blue on pale blue. Reliable garden performance including container culture. Pat: US# 26268 to Anthonius Rijnbeek, Netherlands on 12.22.2015, as sport of 'Blue Heaven'
Photo, web:
https://www.woottensplants.com/product/agapanthus/agapanthus-little-dutch-blue/

Calathea leitzei 'Fusion White' - leaves elliptic-lanceolate to broadly ellptic, medium to dark green, heavily and irregularly margined and sectors in a feathery pattern in pure white (35-55% surface), smaller sectors of pale green and greenish-gray appear (5%) but predominantly bicolored and showy. It has a superficial resemblance to Stroemanthe 'Triostar' but without the bold red back of the leaf. Or, pat: US# 26187 on Aug. 21, 2013 to Taiyan Yam, Apopka, Florida, found in Malaysia, as sport in 2007. In: Biostok.com, 2014  to US trade

Aglaonema 'Pink Dalmatian' -
very compact. Leaves 7 in. lojng x 2.5 in. wide, broadly elliptic, sklightly undulate, acute to acuminate, cuneate, very dark, glossy green, heavily mottled and sectored in rich, glowing pink, many spotds and zones fused into irregular zones, this color about 35-60% of surface. In: www.costafarms.com, accessed 3.31.2016
Photo:
http://www.fngla.org/TPIE/2016/images/Showcase/PinkDalmatian.JPG

Dracaena reflexa var. angustifolia (popularly D. marginata) 'Red Waters' - very dark green suffused dark red along the margins, not a thin margin as often seenbut up to 20% of the blade in red tones. In: Suncoast Nursery, c. 2015

Homalonema 'Sunshine Gem' - leaves cordiform but base more truncate than cordate in some cases, bright yellow growth,becoming chartreuse and lime, finally a medium green. This provides a bright coloration in this useful genus similar to Philodendron oxycardium 'Neon' but in a much more sophisticated, and hightly textured leaf. In: Sunshine Horticulture.

Wisteria floribunda 'Ed's Blue Dragon' - vigorous vine as species. Flower inflorescence 35-40cm long x 8-12cm wide, about 1-10 per stem, lasting 3-4 weeks, individual dflowers 2cm deep by 2.0-3.5 wide, corolla light blue and mauve tones (RHS 160D tinged 104B and 92B, later 106D fading in part to 108D), double in about 20 petaloids, these 2-3cm long by 0.5-10cm wide. Easily propagated by stem cuttings, not needing grafting. Flowers are much paler than parent 'Black Dragon' with dark purplish-mauve colorations and also doubleness or multiplication of tepals. 'Domino' has a similar coloration but it's flowers are single and rosette-shaped. Or, pat: US# 26415 on Feb. 16, 2016 to Ed Carmen  as cross of 'Black Dragon' and various pollen parents. Selected as a single plant in 1996.

Salvia (S. chamaedryoides x S. lycoides) 'Red Swing' - 80cm tall x 90cm wide, compact, shrubby, stems tinged red to purple or bronze. Leaves broadly elliptic to short-ovate, apex wide acute to subobtuse,  fairly pale green, textured and curly. Flowers corolla scarlet-red, calyx purplish-black, scented, buds very dark red to purplish-red, appearing almost black. USDA 8 or better.  Or, Pat: US# 26401 on Feb. 2, 2016 to Catherine Bernabe, hybrid in 2008. It has been sold as S. greggii but the US Patent information from the originator refutes that claim.

Agave 'Desert Diamond' - 15 in. tall x 18 in. wide, dense,compact, flat-globose with age, sparsely oversetting, slower than parent 'Kissho Kan'. Leaves bluish-green to greyish-green, broadly margined nearly pure white with some striping at about 25-35% surface, spinose teeth rich burnt orange to reddish-orange, contrasting much with the pale chimera. USDA 9a. Or: Han Hansen as sport of 'Kissho Kan' in 2005, US Patent #26384 on feb. 2, 2016. It is perpetuated mostly by tissue culture as offsetting is slow. Web:
http://www.plantdelights.com/Agave-Desert-Diamond-for-sale/Buy-Desert-Diamond-Century-Plant/

Echeveria 'Sagitta', 'Hercules', 'Apus', and 'Orion' - data pending

Berberis thunbergii SUNJOY® TANGELO 'O'byrne' - 36-48 in. tall, upright, "outwardly arching and mounding" (patent app), vigorous, freely branching. Leaves reddish-orange, thinnly margined or ringed pale yellow to chartreuse, overall appearing a "zingy orange" from a distance in the landscape, yet stronger than other variegated cultivars. Rust resistant. Or, Pat: US# 26546 on March 29, 2016 to Ernest O'Bryne, Eugene, Oregon, USA as 'Aurea' x 'Rose Glow' in 2003. 


Vaccinium 'Nocturne'. Habit ornamental, vigorous, erect to slightly spreading. Leaves glossy green, showy. Flowers later in season compare to highbush clones, providing additional cold resistance. Fruit bright reddish-orange at first, showy in this state, later bue, maturing very dark blue to gunmetal black. For several weeks the contrast of bright new berries and very dark older ones provides high ornamental interest. Cold hardy similar to northern highbush clones, LT50 of buds is ahout 25 deg. C.Hexaploid. Or: M.K. Ehlenfeldt, USDA-ARS, Marucci Center for Blueberry and Cranberry Research, Chatsworth, New Jersey 1993 as complex parentage involving V. darrowii, V. ashei, pink-fruited selections, and V. constablaei. Primary parents are 'Premier' and US 874, selected 1996 for further evaluation.Li:
http://hortsci.ashspublications.org/content/50/12/1825.extract




Hedera helix 'Niliata' - click above image to enlarge. Habit slower, vinous. Stems red to reddish-violet or tinged so. Leaves 5-lobed, star-shaped, entire, blade very flat, terminal lobe dominant, 5cm long x wide (average), goldish-yellow to greenish-yellow, later becoming more light green to ivory depending on light and temperature, base deeply cordate, apex subaucte. The originator says " 'Renton Gold' has more greenish, not gold color, not star-shaped leaves, with slightly undulate, not flat margin, and rounded, not subacute apex, and reddish-green not red as in the 'Nilita' stem. Our observations that the lobes are more narrow, less undulate, more uniform in color (less suffused green in early leaves), and far less rugose than the popular 'Buttercup'. Or: Andriy V. Yena, as sport of 'Surprise' in 2010, courtesy to originator for use of this photo and description. Not registered with the American Ivy Society.


Hedera helix 'Yarik' - click image above to enlarge. Habit very slow, self-branching, dwarf, miniature class. Leaves lanceolate to narrowly three-lobed, lateral lobes 1-2, rarely absent, these lobes very small, reduced at times to large teeth or wide undulations of the margin, somtimes their upper surface at a right angle to the margin above, dark green, 2.5 cm long x 1.0 cm wide (average), base cunate, aboex bluntly obtuse. Considered resistant to Xanthomonas hortorum pv. hederae. The originator states it differs from 'Arguta' with it's greenish, not whitish veins, ribbed midrib [raised line], and more rounded apex. Or: Yaroslav A. Yena, as sport of 'Anake' in 2014, courtesy to originator for use of this photo and description.


Hedera helix 'Papa Yena' - click image above to enlarge. Leaves palmately 5-lobed to medium depth (about 1cm), star-shaped due to about equal primary vein angles, entire, 5 cm long x wide, medium green with some brighter sectors of green, heavily mottled yellowish-cream at about 35-50% surface, many blades also irregularly margined in the same shade, deeply cordate, basal lobes often overlapping, apex subacute, terminal lobe wide and symmetrical. The originator states that 'Pittsburgh Variegated' less regularly mottled with almost no marginal chimera and has narrower blades with a longer terminak lobe. 'Harlequin' is similar but belongs to subsp. hibernica, a tetraploid. Or: Andriy V. Yena, found as sport of 'Mona Lisa' in 2011, name for the originator's father Prof. Vasily Yena. Courtesy to the originator for use of this image.

Two additional Hedera cultivars from Mr. Yena are currently in review for registration and will appear soon.

The following information was presented in CULTIVAR.ORG NEWSLETTER VOLUME II:


Aronia melanocarpa LOW SCAPE™ MOUND 'UCONNAM165' - 1-2 ft. tall x 2-3 ft. wide, dwarf, very low for this species, suitable for mass planting, edging, groundocver, and soil stabilization. Or: Dr. Mark Brand, University of Connecticut. In: www.springmeadownursery.com, accessed 2.28.2016

Aronia melanocarpa LOW SCAPE™ HEDGER 'UCONNAM166' - 3-5 ft. tall x wide, compact, erect to columnar, lower maintenance than 'Viking', leaves dark green, becoming yellow, orange, and red in fall. Or: Dr. Mark Brand, University of Connecticut. In: www.springmeadownursery.com, accessed 2.28.2016

Betula x plettkei 'Golden Treasure' - 2-4 ft. tall x wide, much as species, dwarf, yellow bright yellow becoming greenish-yellow. Useful as bright, dwarf shrub or patio container. Or: Michal Andrusiv, Czech Republic. In: www.springmeadownursery.com, accessed 2.28.2016

Heliopsis helianthoides 'Double Sunstruck' - compact-mounded,  flowers semi-double, rays dark yellow, leaves variegated,m whitish with distinctly greener veins. Or: US PPAF on 2.25.2016 by Lunne Knosher, Campton Hills, Illinois.

Allium 'Lavender Lollipop' - 15-18 in. tall, heads dome-shaped, purplish-lavender.

Filipendula 'Red Umbrellas' (F. multijuga x F. palmata) - 30 in. tall, leaves palmately lobed, strongly double-serrate (two sizes of teeth), veins to tertiary leaves a rich red, very showy, flowers light pink to darker pink centers. Or: Yohei Hosogai, Japan.

Cornus kousa SCARLET FIRE™ 'Rutpink' - flower bracts uniformly rich pink, holding this color up to 8 weeks, nearly all of the bract heavily pigmented, leaves clea and unmarked, fall colors red, and it is also considered the heaviest flower of all known pinks in this species (2016). Or: Dr. Tom Molnar, Rutgers University.

HIbiscus syriacus PURPLE PILLAR™ 'Gandini Santiago' - 10-16 ft. tall, columnar (officially "pyramidal" per US Plant Patent), neat. Flowers sterile, semi-double, somewhat open-faced to show marekings, rich purplish-lavender, heavily marked and streaked red to violet-red, each zone orbicular with 7-12 claw-like or striped projections. Or: US Plant Patent #25568 on May 19, 2015 to Marinus van Aart, Oudenbosch, The Netherlands, as chance seedling fiound in Girona, Spain 2002. In: www.springmeadownursery.com, accessed 2.28.2016

Hibiscus syriacus RUFFLED SATIN® 'SHIMCR1' - US Plant Parent #26222

Hibiscus syriacus LIL' KIM 'SHIMRV24' - US Plant Parent #26374

Camellia sasanqua SUSY DIRR™ 'Green 99-031' -  http://plantsnouveau.com/plant/camellia-susy-dirr/, previously patented as 'Green 99-031' (US PP# 24888) so assume the name SUSY DIRR is therefore considered a trademark or trade name since the cultivar name is legally established in the patent record.

Acer palmatum 'Verkade's Jacus Potus' - Shrubby, heavily branched. Leaves 3-divided, margins crinkled, red new growth. Or: David Verkade. Offered by www.heritageseedlings.com, online Wholesale Catalog 2015-2016 (PDF), accessed 2.16.2016

Taxodium distichum APACHE CHIEF® 'Nelson' - 50 ft. vigorous, puramidal, later more broadly spreading, dependable central leader, wider than 'Shawnee Brave'. US PP# 12502, widely known to date as 'Nelson', this trademark name not widely seen before. Offered by www.heritageseedlings.com, online Wholesale Catalog 2015-2016 (PDF), accessed 2.16.2016

Callicarpa PLUMP AND PLENTIFUL™ PURPLE GIANT 'O5-132' - fruit purple, abundant, covering branches almost completely. Offered by www.heritageseedlings.com, online Wholesale Catalog 2015-2016 (PDF), accessed 2.16.2016

Abies balsamea 'Sticky Fingers' - compact, dense, columnar from broom, branchlets lon, finger-like, needled light green, shorter, quite resinous. Or: Mike and Cheryl Davison. Offered by www.coniferkingdom.com, accessed 2.16.2016

Caladium x hortulanum FIRE AND ICE™ - 18-30 in. tall, leaves with medium olive-green base color, hreavily veined pinkish-red (10% surface) to the secondary level and into some tertiaries, intervenal zone heavily marked and blotches white (25-40% surface). Or:  In: www.provenwinners.com, accessed 2.27.2016 ,new 2015

Caladium x hortulanum HEARTFIRE® - 15-20 in. tall, leaves very dark green in color, about 80-95% red shades overall, central veins to secondary second richly colored magenta-red to bright rose-red, remainder gradually suffused in dusky red to rose-red shades, the venation not always sharply contrasting. Or:  In: www.provenwinners.com, accessed 2.27.2016 ,new 2015

Cornus drummondii LEMON DROPS™ 'KNI-Yellow' - flowers "soft saffron yellow", fruit yellow maturing to burgundy, clean dark leaf. Offered by http://www.klynnurseries.com, 2013 Catalog/No Pricing, accessed 2.17.2016, their own introduction from selected seedling


Astilbe EDEN'S PHOENIX® - In: https://www.devroomen.com, accessed 2.28.2016
Astilbe EDEN'S TWINKLE® - In: https://www.devroomen.com, accessed 2.28.2016
Astilbe 'Mighty Chocolate Cherry' - In: https://www.devroomen.com, accessed 2.28.2016
Astilbe 'Mighty Plonie' - In: https://www.devroomen.com, accessed 2.28.2016
Astilbe 'Mighty Red Quin' - In: https://www.devroomen.com, accessed 2.28.2016
Actaea japonica 'Cheju-Do'-  In: https://www.devroomen.com, accessed 2.28.2016

NOT REGISTERED (we sent to Syringa ICRA for his consideration) Syringa pekingensis GREAT WALL™ 'WFH2' - improved habit, branches upswept for neater pyramidal stance, erect-ovoid overal, bark cherry-like, exfoliating, very showy. leaves dark glossy green, flowers apparently typical and showy, gold fall color. Offered by http://www.klynnurseries.com, 2013 Catalog/No Pricing, accessed 2.17.2016, their own introduction

Picea pungens 'Blue Wave'' - Offered by http://www.klynnurseries.com, 2013 Catalog/No Pricing, accessed 2.17.2016, their own introduction

Thuja occidentalisd 'Nuclear Blast' - Offered by http://www.klynnurseries.com, 2013 Catalog/No Pricing, accessed 2.17.2016, their own introduction

Acer macrophyllum 'Santiam Snow' - leaves heavily sectored and mottled cream to light yellow to greenish-yellow, often faintly spotted too, chimera easily 50-80% surface on some blades. In: Heritage Seedlings. Offered by www.coniferkingdom.com, accessed 2.16.2016

Acer palmatum 'Hangover' - habit arching, semi-pendulous. Leaves very irregularly, asymmetrically of Dissectum Group, avocado green, undulate. Offered by www.coniferkingdom.com, accessed 2.16.2016, their exclusive introduction.

Picea abies 'Catharine's Golden Heart' - spreading-weeping to cascading, yellowish sheen over green, 3-5 inches a year, coning in youth. Or: Bob Fincham, named by Will Fletcher for his mother. Offered by www.coniferkingdom.com, accessed 2.16.2016

Amsonia tabernaemontana 'Grande' - plants more vigorous, flowers larger than species typical.

Acer palmatum 'Celebration'

Acer palmatum 'Strawberry Spring'


Pachysanta axillaris 'Crug's Cover' - habit "rampant", spreading well, leaves very glossy dark green, boldly textured, dentate, undulate, fruit pinkish-silver. Offered by www.crug-farm.co.uk, accessed 2.16.2016, their selection BWJ8032 from China 2000.

Acer buergerianum VALYNOR® 'ABFSS' - 35-40 ft. tall x 20 ft. wide, habit directly more erect, columnar-ovoid, useful in a species which can easily span 50-80 ft. wide with time. Pat: US #19181 to Dwayne Moon


Amelanchier arborea PINK DAMSEL™ 'Tift County' - 16 ft. tall x 20 ft. wide, grown as single or multi-trunk, flower buds pink opening to near white, leaves light to medium green, "finer textured" than typical of species, red to orange fall colors. Or: Tift Country, Georgia US where is handles very hot conditions.   

Aspidistra attenuata 'Dungpu Dazzler' - Offered by www.crug-farm.co.uk, accessed 2.16.2016

Aspidistra attenuata 'Xitou Starlet' - Offered by www.crug-farm.co.uk, accessed 2.16.2016

Aspidistra daibuensis 'Taiwan Stars' - Offered by www.crug-farm.co.uk, accessed 2.16.2016

Aspidistra daibuensis 'Yuli Yummy' - Offered by www.crug-farm.co.uk, accessed 2.16.2016

Aspidistra sutepensis 'Pha-Hom-Pok-Adot' - Offered by www.crug-farm.co.uk, accessed 2.16.2016

Rodgersia nepalensis 'High Flier' - Offered by www.crug-farm.co.uk, accessed 2.16.2016

Rodgersia pinnata 'Shangri-La' - Offered by www.crug-farm.co.uk, accessed 2.16.2016

Sorbus 'Showa' - Offered by www.crug-farm.co.uk, accessed 2.16.2016

Allium 'Windy City' - 15 in. tall x wide in foliage, 18-20 in. tall in bloom, leaves dark, glossy green, flowers in rose-purple heads. HGTV Home introduction 2015, offered by www.intrinsicperennialgardens.com, accessed 1.16.2016

Amsonia hubrichtii 'Green Mist' - 3 ft. tall x wide, uniform clone, dark green leaf, orange to golden-yellow fall color, flowers apparently typical. offered by www.intrinsicperennialgardens.com, new 2014, accessed 1.16.2016

Amsonia tabernaemontana 'Fontana' - 36 in. tall x wide, flowers a slightly darker blue, notably for showy red stems and red seedheads. offered by www.intrinsicperennialgardens.com, new 2015 accessed 1.16.2016

Bouteloua curtipendula 'Buffalo Bedtime' - 36 in. tall x 24 in. wide, red stems, foliage with orange-red tones, tips more red, vegetative clone for stability and uniformity. offered by www.intrinsicperennialgardens.com, intro. 2015, accessed 1.16.2016

Echinacea 'Hang Loose' - 36 in. tall, leaves thin, hairy, rays long, hanging or pendulous, orange with red base, aging to melon orange, starts early (June). Bred from RE. simulata among other things. offered by www.intrinsicperennialgardens.com, new 2014, accessed 1.16.2016

Carex 'Silver Fox' - 18-24 in. tall x 24 in. wide, leaves erect, silver-blue. offered by www.intrinsicperennialgardens.com, intro. 2015, accessed 1.16.2016

Eupatorium perfoliatum 'Milk and Cookies' - 36 in. tall, flowers milky-white, leaves brownish-red, showy. offered by www.intrinsicperennialgardens.com, intro. 2014, accessed 1.16.2016

Vaccinium 'Perpetua' - HortScience 50: 1828-29 (2015) - for sale as PERPETUA™ 'ORUS-61-1' despite having a US Plant Patent as 'Perpetua', a cultivar!

Aucuba japonica 'Petite Jade' - click link for USDA/USNA introduction PDF, offered by Monrovia.com

Vaccinium 'Nocturne' - HortScience 50" 1825-27 (2015)

Hydrangea quercifolia 'Queen of Hearts' - click link for USDA/USNA introduction PDF

Cinnamomum camphora 'Yongjin', 'Xiaguang', and 'Yuhuang' (all ornamental) - HortScience 50: 762-764

Abelia x grandiflora MYSTIC DAYDREAM 'Opstal40' USPP# 25193

Gardenia jasminoides COCONUT MAGIC 'Extra Large Cream' - 48 in. tall x wide, flowers large at 5-6. in wide, double, creamy-white. Ball Ornamentals exclusive, accessed 1.16.2016

Achillea sibirica 'Japanese Lace' - 36 in. tall x wide, leaves as species, green, incised, lacy, improved over existing species stock for showy foliage, corymbs with light pink rays. Or: Plant Delights from stock collected by Dr. Tom Mitchell near Hokkaido, Japan. .http://www.plantdelights.com, accessed 1.16.2016, new for 2016

Aconitum sinomontanum 'Sacred Tower'. .http://www.plantdelights.com, accessed 1.16.2016, new for 2016
Agave 'Bluebeel Giants'. .http://www.plantdelights.com, accessed 1.16.2016, new for 2016
Agave x protoamericana 'Lemon Lime'. .http://www.plantdelights.com, accessed 1.16.2016, new for 2016
Agave 'Shark Bite'. .http://www.plantdelights.com, accessed 1.16.2016, new for 2016
Agave titanota 'Sunburst'. .http://www.plantdelights.com, accessed 1.16.2016, new for 2016
Agave victoriae-reginae 'Lunar Eclipse'. .http://www.plantdelights.com, accessed 1.16.2016, new for 2016
Agave vilmoriniana 'Stained Glass'. .http://www.plantdelights.com, accessed 1.16.2016, new for 2016
Amsonia tabernaemontana 'Storm Cloud'. .http://www.plantdelights.com, accessed 1.16.2016, new for 2016
Aristolochia serpentaria 'Eagle Rock'. .http://www.plantdelights.com, accessed 1.16.2016, new for 2016
Artemisia schmidtiana 'Ever Goldy' - http://www.plantdelights.com, accessed 1.16.2016, new for 2016
Bommeria hispida 'Gila Dwarf'. .http://www.plantdelights.com, accessed 1.16.2016, new for 2016
Cimicifuga japonica 'Silver Blush'. .http://www.plantdelights.com, accessed 1.16.2016, new for 2016
Croomia pauciflora 'Portersville' .http://www.plantdelights.com, accessed 1.16.2016, new for 2016
Dione edule 'Palma Sola'. .http://www.plantdelights.com, accessed 1.16.2016, new for 2016
Epimedium brachyrrhizum 'Pink Angels'. .http://www.plantdelights.com, accessed 1.16.2016, new for 2016
Epimedium 'Flower Power'. .http://www.plantdelights.com, accessed 1.16.2016, new for 2016
Epimedium franchetii 'Suntan'. .http://www.plantdelights.com, accessed 1.16.2016, new for 2016
Epimedium myrianthyum 'Mottled Madness'. .http://www.plantdelights.com, accessed 1.16.2016, new for 2016
Epimedium wushanense 'Super Mottle'. .http://www.plantdelights.com, accessed 1.16.2016, new for 2016
Hypericum calycinum 'Fiesta' . .http://www.plantdelights.com, accessed 1.16.2016, new for 2016
x Mangave 'Kaleidoscope'. .http://www.plantdelights.com, accessed 1.16.2016, new for 2016
x Mangave 'Moon Glow'. .http://www.plantdelights.com, accessed 1.16.2016, new for 2016
x Mangave 'Pineapple Express'. .http://www.plantdelights.com, accessed 1.16.2016, new for 2016
Orostachys 'Crazy Eddie'. .http://www.plantdelights.com, accessed 1.16.2016, new for 2016
Salvia azurea 'Little Boy Blue'. .http://www.plantdelights.com, accessed 1.16.2016, new for 2016
Selanginella peruviana 'Burnet'. .http://www.plantdelights.com, accessed 1.16.2016, new for 2016
Spigelia marilandica 'Ragin Cajun'. .http://www.plantdelights.com, accessed 1.16.2016, new for 2016
Yucca lousianensis 'Desoto Blue'. .http://www.plantdelights.com, accessed 1.16.2016, new for 2016
Yucca 'Red Rover'. .http://www.plantdelights.com, accessed 1.16.2016, new for 2016

Anemone flaccida 'Suzuka Hime' - http://www.shikoku-garden.com/English/indexenglish.htm, accessed 12.29.2015
Disporum sessile 'Cricket' - http://www.shikoku-garden.com/English/indexenglish.htm, accessed 12.29.2015
Disporum sessile 'Snow Stream' - http://www.shikoku-garden.com/English/indexenglish.htm, accessed 12.29.2015
Disporum sessile 'Tweetie' - http://www.shikoku-garden.com/English/indexenglish.htm, accessed 12.29.2015
Calanthe discolor 'Lime Fairy
' - http://www.shikoku-garden.com/English/indexenglish.htm, accessed 12.29.2015
Pinellia tripartita 'Gold Dragon'' - http://www.shikoku-garden.com/English/indexenglish.htm, accessed 12.29.2015
Polygonatum lasianthym 'Kon Chri Shima' - http://www.shikoku-garden.com/English/indexenglish.htm, accessed 12.29.2015
Rodgersia podophylla 'Bloody Wheels' - http://www.shikoku-garden.com/English/indexenglish.htm, accessed 12.29.2015
Thalictrum urbainii 'Taiwan Baika' - http://www.shikoku-garden.com/English/indexenglish.htm, accessed 12.29.2015
Chloranthus japonicus 'Shikoku Spotlight' - http://www.shikoku-garden.com/English/indexenglish.htm, accessed 12.29.2015
Smilacina japonica 'Golden Dragon' - http://www.shikoku-garden.com/English/indexenglish.htm, accessed 12.29.2015
Smilacina japonica 'Dragons Treasure' - http://www.shikoku-garden.com/English/indexenglish.htm, accessed 12.29.2015

Aconitum bulbiferum 'Monk Gone Wild CDHM 14523 - corolla showy reddish-purple - http://www.farreachesfarm.com, accessed 1.2/2016, their own selection from Fall 2012, collected in Longshou, Sichuan, China.
Dactylorhiza fuchsii 'Purple Python' - new growth suffused purple-maroon, later more "spotted reticulation", flowers lavender-pink, somewhat spotted. http://www.farreachesfarm.com, accessed 1.2/2016, their own seedling


Arisaema consanguineum 'The Perfect Wave' - leaves 99-100% silvery-blue, very showy, undulating, not greenish as species. Or: Ellen Hornig.

Scutellaria resinosa 'Smokey Hills' - http://www.jelitto.com, accessed 12.26.2015

Geum 'Koi' - http://www.jelitto.com, accessed 12.26.2015
Plantago major 'Purple Perversion' - http://www.jelitto.com, accessed 12.26.2015
Aubrieta x culturum 'Pixie Pearls' - http://www.jelitto.com, accessed 12.26.2015
Heliopsis helianthoides var. scabra 'Burning Hearts' and 'Prima Ballerina' - http://www.jelitto.com, accessed 12.26.2015
Trifolium rubens f. album 'Frosty Feathers'' - http://www.jelitto.com, accessed 12.26.2015
Jasione 'White Delight' - http://www.jelitto.com, accessed 12.26.2015
Melissa officinalis 'Lemona' - http://www.jelitto.com, accessed 12.26.2015
Drab aizoides NAPOLEAN™ - http://www.jelitto.com, accessed 12.26.2015
Muhlenbergia reverchonii UNDAUNTED - http://www.jelitto.com, accessed 12.26.2015
Elymus canadensis 'Icy Blue' - http://www.jelitto.com, accessed 12.26.2015



Verbena bonariensis METEOR SHOWER - www.provenwinners.com, accessed 12.23.2015

Buddleia 'Miss Pearl' - 4-5 ft. tall x wide, dense, compactflowers in dense panicles, floriferous, corolla pure white, slightly and pleasantly undulate. Seedless and thus not invasive from seed. Or: Dr. Dennis Werner, North Carolina State University as 2009 cross of 'Ice Chip' and 'Miss Molly'. In: www.springmeadownursery.com, accessed 12.23.2015. The entire cultivar release notes page from Werner and NCSU is found here: https://cals.ncsu.edu/hort_sci/research/expertise-pages/PlantBreedingBuddleja.php

Buddleia 'Glass Slippers' - 3 ft. tall x 5 ft. wide, stems silvery-tinged, lower and more spreadint than some clones, flower heads compact, numerous, corolla periwinkle blue, secondary bloom until fall is common. Or, in: Walters Gardens, intro. 2014. This same firm also offers new introductions:
Buddleia 'Prince Charming'
Buddleia 'Orchid Annie'
Buddleia 'Princess Bride'
Buddleia 'Queen of Hearts'
Buddleia 'Lavender Cupcake'
Buddleia 'Little Angel'
Buddleia 'Little Nugget'
Buddleia 'Royal Falls'
Buddleia 'Magenta Munchkin' 

Cytisus scoparius SISTER GOLDEN HAIR® 'SMNSCGH' - 12-18 in. tall x wide, dwarf for this species, flower typical golden-yellow, profusely borne. USDA 6a. 

Gymnocladus dioicus 'UMNSynergy' TRUE NORTH™ - vase-shaped, much narrower for small spaces (30-40 ft. vs. 40-60 ft. of species). Fruitless. University of Minnesota introduction.

Baptisia 'Really Blue' - 48 in. tall x 36-48 in. wide, corolla rich, deeper "Baptisia blue" than most clones. Or, in: www.songparrow.com, accessed 12.23.2015, "exclusive introduction" 2016 

Baptisia 'Strike It Rich' - 48 in. tal x 36-48 in. wide, corolla rich golden-yellow, yellowish-olive calyx, giving it a clean yellow look from a distance.
Or, in: www.songparrow.com, accessed 12.23.2015, "exclusive introduction" 2016 

Aesculus glabra EARLY GLOW™ 'J.N. Select' - reliable, earlier bright red fall color, glossy dark green summer foliage, typical yellow flowers. Very limited fruit production.



Actaea simplex 'Carbonella'

Viburnum cassinoides DEFENDER™ 'KLMD' - 5-8 ft. tall x 4-7 ft. wide (10 years). Flkowers cream, yellow anthers, larger than species typical. Fruit green, becoming pink, then red, then blue to black (as species). Leaves rich red to orange and red in fall, showy. Considered a basic species improvement clone. Or: Klehm, Song Sparrow Nursery, introduced 2015.



THUJ006 - Thuja occidentalis POLAR GOLD™ 'SMTOYB' - 144-188 inches tall, narrowly pyramidal, more vigorous than 'Sunkist', dense, much as 'Brandon' in form. Leaves yellow to gold all year, resistant to wind burn. USDA hardy to zone 3, more so than 'Sunkist'. US Patent #25388 on March 31, 2015 to Tim Wood, assigned to Spring Meadow Nursery, cross of 'Brandon' x unnamed male parent 2003, selected 2007.

Prunus lusitanica subsp. azorica TICO® 'YBRAZO01' - Vigorous but neat, superor form, reddish new tips, becoming bright lime, later more typical green shades. Petioles also red, showy, contrasting. Very cold hardy as typical of the subspecies. Or: Yves Brenelere, selection.

Pennisetum setacum 'Summer Samba' - 40-80cmn tall, leaves maturing to blackish-purple or very dark purple shades, flower heads silvery with purplish basal tones. Selected from 'Rubrum', darker and improved over it for compact form and color.


THUJ007 - Thuja occidentalis THIN MAN™  'SMTOTM' - 30-40 ft. tall x 3-4 ft., narrowly fastigiate, narrower and more vigorous than parent 'Ada' as well as popular 'DeGroot's Spire', moderate growth rate to vigorous. Leaves not bronzing in winter, bright green most of the year.. Wind resistant. Cold hardy to -40 Deg. F, more durable in winter than 'DeGroot's Spire'.  US Patent# 25672 on July 7, 2015 to Tim Wood, assigned to Spring Meadow Nursery, cross of 'Ada' x unknown male, 2003, selected as superior seedling in 2007

Tradescantia 'Purple Milano', likely a Zebrina pendula clone

Tradescantia 'Siliver Sicilian'

Cercis chinensis 'Spring Snow' - flower corolla white, numerous. Introduced by www.wairere.co.nz, accessed 4.25.2015

Cercis chinensis 'Brandywine' - listed name, not described, www.bluehorizonnursery.com, accessed June 2015

Chaenomeles 'Green Ice' - flower corolla chartreuse in bud, later white tinged green, semi-double.
Introduced by www.wairere.co.nz, accessed 4.25.2015



Calycanthus (C. chinensis x C. floridus var. oblongifolius) 'Hongyun'. Flowers large, red, 2 whorls of tepals. Abstract: Acta Hort. Sinica 41 (8): 1755-1756 (2014).



Prunus EMERALD CHARM™ 'Morgenson' (P. fruticosa x Prunus unknown species) - dense shrub 4-6 tall by wide, if allowed a tree of 20-25 ft. tall x 15-18 ft. wide, up to 1.25 ft. growth a year over 16 years, multi-stemmed by nature unless trained as single trunk, suckering, vase-shaped to domed-spreading (roughly subglobose-wide), substitute for tree lilac in very cold climates. Bark dark brown, tinged red, somewhat showy, thus slightly similar to Syringa reticulata and S. japonica. Leaves thick, durable, deciduous, heat tolerant, medium to dark green, very lustrous, showy, yellow tints in fall. Flowers white, numerous, in small clusters. USDA Zone 3 cold hardy. Propagated by budding on P. maackii or P. cerasus 'Meteor' (a sour cherry). Or: Greg Morgenson,Manager, Lincoln-Oakes Nursery, Bismark, North Dakota, USA collected seed of Prunus fruticosa in Northern Plains in the middle 1980s. It is obviously a cross to another, yet unknown species. Licensed by North Dakota State University as item RFM-57, intro. 2008 NDSU website: http://www.ndsuresearchfoundation.org/rfm57

CARP009 - Carpinus carolinana 'Eisler' ('Eisler Select') - a listed name. "Select" is a term not permitted in cultivar names by the code.



Acer RUBY SUNSET™ 'JFS-KW249' (A. truncatum x A. platanoides) - 25 ft. tall x 20 ft. wide, broadly ovoid to globose, USDA 4, leaves dark, glossy green, fall color rich orangish-red to dark red. Combines the best of each parent species. In, or: http://www.jfschmidt.com/, accessed 12.26.2016, 2016 intro.


Taxodium distichum var. imbricarium GREENFEATHER™ 'Carolyn Malone'

Acer grandidentatum MESA GLOW™ 'JFS-NuMex 3'

Prunus FIRST BLUSH™ 'JFS-KW14'

Ulmus americana COLONIAL SPIRIT® 'JFS-Prince II'

Asclepias tuberosa 'Monarch Promise' - as species but leaves irregularly margined in cream (15-30% surface) with some pale green, and grayish sectors, adding much off-season interest.

Alocasia MEGALODON™ - 5-8 ft. tall, erect, robust, leaves massive at 24-34" long, highly lobed and undulate, rich medium green with dusky red veins below. In, or: agristarts.com, accessed 12.26.2015, "appears to be a unique form of Alocasia 'Portora' we strumbled across...one of the tougher Alocasias". Ns: the name is presumably based on the massive, toothy prehistoric shark species of this name.

Cordyline obtecta CENTERPIECE™ 'Albatross' - 24-36 in. tall, a robust, strong plant, leaves broadly linear to elliptic-linear, 55cm long x 7cm wide (means), dusky rose-red to dusky dark purple with faint lines of more orangish-red, muted and suffused throughout with several close red to pinkish or coral tones, older foliage often clearly mottled in dark red over pale red shades. Pat, or: US PP# 23715 on July 2, 2013 to Gordon Scott as seedling selection of C. baureri 'Falcon' in 1999, now known to be part of C. obtecta.

Cordyline CENTERPIECE™ CARUBA® BLACK - 24-36 in. tall x 12-18 in. wide (as young garden outdoor pot plants), leaves narrowly elliptic-linear, glossy blackish-purple to maroon-purple



Sedum 'Marina' - USPP# 26191

Sedum 'Rosetta' - USPP# 26190

Sedum 'Orbit Bronze' - USPP# 26189

Heuchera 'Pretty Perrine' - USPP# 26112



Astrantia major CENSATION™ Milano' - 50cm tall, flowers rich pinkish-red to cranberry-pink  CENSATION
is a trademark name used to market multiple genera and is therefore not registered by us nor should it be considered a nomenclatural taxon. It is provided here for context and clarity only.


Elaeagnus x ebbingei MARYLINE® 'Abrela' - leaves centered light yellow to 90% or more of surface, this chimera becoming dark yellow as leaf ages, uniform coloration and one of the most chimera-rich clones known in the genus. Or: Albert Breneliere.

Campsis x tagliabuana GRENADINE® 'Rutcam' - flowers to 8cm wide, rich red to orangish-red corolla, tube on exterior more orange, effectively a true red from a distance, very floriferous until fall. 
Or: John Ruter.

Gentiana SHOWTIME DIVA® - http://www.cnb.nl/NL/Paginas/Catalogus.aspx?ProductId=240

x Sycoparrotia semidecidua 'Autonno Rosso' - new cross of parents, more cold hardy than existing clones. Leaves bright red to dark red in fall.

Heuchera 'XXL'

Berberis 'Thunderbolt' - 2.0-2.5m tall x wide. Leaves very dark purplish-burgundy, hold color into summer, over evergreen in mild climates. Or: INRA.

Phlox 'Violet Pinwheels' - http://www.cnb.nl/NL/Paginas/Catalogus.aspx?ProductId=255

Geum [Cocktail Series] - 'Wet Kiss', 'Spanish Fly', 'Citronge', and 'Dark and Stormy'

Spiraea betulifolia PINK SPARKLER® 'Courispi01' - 50-60cm tall x 60-80cm wide, very dense, compact, mounded. Leaves bright green, approaching lime at first, very showy. Flowers light pink in corymbs (the first non-white clone of this species in the trade), if cut back will flower lightly again in late summer. Or: Jacques Couturieux 
e to everyone is HOSTA ONE, the 100% free, all-in-one portable on all phones, tablets, book readers, and computers guide to more than 1000 

= highest cultivar count of any resource in genus available for purchase or download online. This is the opinion of the editor and we welcome challenges to the total cultivar count. Be prepared to prove it. Ties in this category are awarded if it appears to be a close race in the opinion of our editors.
= not just runners up or honorable mentions but are elite, highly refined web resources, often with more images and personal breeders or expert knowledghe than our gold star choices.
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GENUS ALL RESOURCES
Abelia Hatch's Cultivars of Woody Plants - 59  cultivars (New Ornamentals Society)


Interspecific Hybridization in Abelia by Scheiber and Robacker (PDF article, Acta Horticulturae) - paid article from two top geneticists


Stem and Leaf Hardiness of 12 Abelia Taxa by Scheiber et. all (PDF article, HRI)

The Development of New Abelia Cultivars through Interspecific Hybridization by Scheiber, Dirr, and Robacker (PDF article, CANR)

Abelia by Barnes (website)


FAIRY DANCE™ 'Minedward'


Abelia Breeding with Dr. Carol Robacker (university video, University of Georgia) - a fascinating look at one of the top woody plant programs in modern times.

    62

ABEL001 - Abelia TWIST OF ORANGE™ 'sPg-3-069' (Hawksridge Farms) - 4-5 ft. tall x wide. Leaves margined coral-orange at first, later more gold-margined, chimera 15-30% surface, very bold as such. Flowers near white, floriferous. Developed by the Southern Plant Group or sPg.

ABEL002 - Abelia SUNNY CHARM® 'MINDU01' (Plantarium.nl) - 50-110cm tall x wide, dense, subglobose. Flowers dark cream to light yelow, throat also purpllish-pink to pale violet on side, main throat cream with fine golden reticulations, very odd colors for this genus, buds distinctly violet to purple on exterior, calyx more copper to reddish. Selected by Pepinieres Minier, Eur. PBR 35714.

ABEL003 - Abelia x grandiflora LUCKY LOTS (Concept Plants)

ABEL004 - Abelia x grandiflora LADY LIBERTY 'Keylib' - habit compact, dense. Flower corolla white tinged pink, calyx pale dusky pink. Leaves red in fall, showy. Cold hardy to -20 deg. C. Eur. PBR to breeder Klemens Keijzers. Plantipp.eu, accessed 4.25.2015.

ABEL005 - Abelia PINK PONG® 'ABENOV41'  - 1.5-2.0m tall x 1.2-1.5m wide. Flowers rich lavender-pink to violet  in bud opening to light pink or lavender-pink with darker markings of golden-orange  in throat, calyx more light pinkish-orange to purplish-copper, highly floriferous over a long period.  Selected by INRA/SAPHINOV, a 2004  cross of A. schumannii 'Bumblebee' x A. grandifolia 'Semperflorens,  sapho.fr, EU PBR pending, accessed 5.31.2015.

ABEL006 - Abelia x grandiflora GOLD TOUCH® 'BMRGOLD' - 60-100cm tall x 60-80cm wide. Twigs orangish to red, showy, contrasting well. Leaves golden-yellow, orange and copper tints in new tips, similar but stronger tones in fall. Flower near white to pale pink. Selected by Andre Briant in cooperatin with Pepinieres Minier.
--end of OROC Data Sharing
Abelmoschus
Abies  
There are two methods of purchasing Cultivar.org plant files
Purchase all plant groups (7.1 gigabytes) for $119,  a savings of over 60% over individual ebook purchases and access from this menu. If you already subscribe click the links below for instant PDF downloads. Individual PDF ebook file purchase as standalone files. These books use DRM by Google so be accessed from this menu.
Pinetum Novum by Hatch - 400+ cultivars - info/order
 

Click logo above for this genus order page with a free sample.


RHS Encyclopedia of Conifers (book) - numerous cultivars and stunning photographs

The World Checklist of Conifers by Haddow and Welch (book, Amazon) - a monumental work by two British conifer experts and nurseryman that deliberately was outside the RHS program of developing conifer checklists. Mr. Welch was a correspondant of mine and I appreciate him citing my studies as I did with his superior works. Humphrey Welch's The Conifer Manual which sadly only got to one volume is a deeper, more complex work that sells for $300-1000 - visit a library unless you're rich.It's worth $300 if you have it to spare.

The Conifer Treasury 5.0 by Mesterhazy (website, cultivar checklist) - very large, impressive checklist of cultivars


ABIE001 - Abies concolor 'Bugy Wugy' (Buchholz Nursery)
ABIE002 - Abies fraseri 'Green Scout' (Brotzman's Nursery) - narrowly columnar
--end of OROC Data Sharing


'New Mexico Verde' + "New Mexico Azul'

RHS Conifer Cultivar Registers (Royal Horticultural Society, ICRA)
Abutilon 525 cultivars  - the most complete cultivar checklist, descriptive or not, ever published and it is exclusive to this site.


These nurseries have originated important cultivars and described them as primary documentation:

Larkspur Nursery Abutilon Collection

    525

Acalypha
HITS (House, Interior, Tropical, Succulent) Plants by Hatch - 2013-15 Early Preview Edition (PDF ebook, 400+ pages leading to 1300 pages in 2017) - 42 cultivars

Kartuz Greenhouses - 25 cultivars - (nursery catalog, gallery) - the largest listing by far we have found.


Variations of Acalypha wilkesiana by Larry Hatch (plant society video, New Ornamentals Society) - preview of the 42 cultivars found in our HITS encyclopedia.

Your computer, tablet, phone, or book reader can have the latest cultivar encyclopedia for each genus in handy PDF form - the most complete cultivar references for more than 103 ornamental, landscape genera. CULTIVAR.ORG is a product of more than 35 years of work by leading horticultural taxonomist Larry Hatch and the hundreds of experts in the New Ornamentals Society and our experts partners around the world. We exceed your familiar plant manuals, horticultural society "complete" guides, and most websites by 3-20 times more cultivars and with much more specific, detailed data. For example, 159 Aucuba cultivars, 191 Astilbe, 274 Aquilegia, 109 Ajuga, 1032 Acer, 59 Abelia, 175 Aglaonema, and 103 Aesculus. For just $119.00, you have access to these huge, original datafiles up until 2018.

If you prefer to purchase volumes separately our Google Play Books Store has many of the same files for $7.20 to $20.00 each. CULTIVAR.ORG is however about 60% less expensive since you are mass-purchasing access at the Preferred Library Rate.
Acanthus

European Garden Flora
Hatch's Perennials 1.0-3.0 - 22 cultivars (PDF ebook, New Ornamentals Society)


Hatch's Perennials: Acanthus to Aurinia, including Agave now combined at.....


RHS/AHS Encyclopedia of Perennials by Rice (book, Amazon) - a popular, expertly illustrated guide in one compact edition. It is a Royal Horticultural Society project so it written to a high standard. Many US copies have American Horticultural Society on the cover.
Herbaceous Perennial Plants by Allan Armitage - a very popular treatise with lots of cultivar notes, identification of species information, and a broad general spectrum of information.
Acer

Asian species (Flora of China)

Jan De Langhe
Maples of the World by van Gelderen, de Jong, et. al (book, Amazon) - generally regarded as the most complete Acer reference ever.

World Checklist of Maple Cultivar Names by Gregory and Angus (cultivar checklist) - said to have 3800 names but this reference does not seem to have an internet source, even from the publisher.

The Maple Society

UBC Maple Forum (blog, forum, University of British Columbia) - most blog-type postings are pooled ignorance with very suspect data among the pearls and odd things from downright idiots. This is not one of those places and even the most experienced maple lover will learn from the postings, images, and resources. Awesome example of internet functions improving knowledge of a plant group in real ways. It's Maple Society affiliation helps it make real contributions to the Acer-world.

Esveld Aceretum


A. saccharum 'John Pair' and 'Autumn Splendor'


  1. Buchholz and Buchholz Nursery
  2. Dick van der Maat
  3. Eastwoods Nursery
  4. Esveld
  5. Fessia Fabrizio
  6. Junkers Nursery
  7. Maple Ridge Nurseries
  8. Mendocino Maples

APGA Multi-Institutional Acer Collection

Checklist of Cultivated Maples: Acer saccharum by Santamour (article, PDF)


Hatch's Cultivars of Woody Plants - PDF Sample of Acer


A.campestre 'Evenley Red' (Blue Bell Nursery)


Hatch's Cultivars of Woody Plants - 1031 cultivars (New Ornamentals Society)
Acer buergeranum, campbellii, campestre, circinatum, and davidii -



Manual of Woody Landscape Plants by Dirr (book, Amazon) - very useful evaluations of cultivars, many quite new, from one of the top experts




ACER011 - Acer campestre JADE PATINA™, photo courtesy of and copyright owned by www.baileynurseries.com, is a distinct improvement on the old, rampant, and ratty species. This one has a clearly incurving habit, erect-globose to ovoid in time, and a wonderful dark incised blade that reminds some of Acer griseum. The fine folks at Bailey's nursery, being in a climate where these super hardy maples are a real necessity, have a long record of improving tough Acer species. Click image please. Above image not part of OROC Data Sharing.

ACER012 - Acer buergerianum 'Angyo Weeping' may prove to the best weeping maples outside Acer palmatum Dissectum Group. It actually has some grace and is not semi-pendulous like so many so-called weeping, more like slightly cascading, cultivars promoted over the last two centuries. Now that the species has been shown to be surprisingly tough, hardy, and pretty in the North American mainstream landscape, suitable now for even corporate and mall plantings, this type of cultivar might get a shot at fame. Click image please. Image above not part of OROC Data Sharing.
Acer
davidii,
pennsylvanicum,
rufinerve,
tegmentostum,
and other
snakebark
species


ACER001 Acer davidii VIPER® (Minier Nurseries) - an interesting bark, mostly pale greenish-white, faint stripes
ACER002 Acer rufinerve GREAT STAR® (Minier Nurseries)
Acer
griseum
and Rochester
Group Hybrids
Not only are the cultivars described but there are many plates of different bark types and their new Cultivar Groups. We also have images from the orignal hybrids from Rochester NY's Highland Park Arboretum
This same file also covers Acer ginnala (tatariucum), japonicum, macrophyllum, negundo, and species up to Acer oliverianum.


ACER004 - Acer 'Sugarflake' (A. griseum x A. saccharum)
ACER005 - Acer (Rochester Group) 'Shaved Chocolate' (Songsparrow Nursery, a Klehm introduction)


Acer (griseum x maximowiczianum) Rochester Group - the oldest known tree of the original hybrid, showing intermediate bark and leaves. It is almost certain that the original Girard Nursery selections came from these two trees or their seed.
Acer
palmatum

Japanese Maples by Gregory and Vertrees (Amazon, book)

Maples for Gardens by van Gelderen (Amazon, book)

Buchholz Nursery has many clones under evaluation, some named, some not. This is a fascinating resource of the highest value.

Japanese Maples by Vertrees and Gregory (2009)


ACER006 -Acer palmatum x pseudosieboldianum ARCTIC JADE (Iseli Nursery, their own hybrid)

ACER007 - Acer palmatum DRAGON TEARS™ - Habit weeping. Leaves very bright red, deeply lobed, not classicially incised or dissected. Selected by Ray and Cindy Jackson. Heritageseedlings.com, accesedd April 2014.
---end of OROC Data Sharing

Acer
platanoides

Acer pectinatum, A. pennsylvanicum, A. pictum, A. platanoides, A. pseudoplatanus, A. pycnanthemum

ACER008 - Acer 'Ample Surprise' (A. amplum x A. platanoides)
ACER009 - Acer platanoides 'Beskid' (Institute of Pomology and Floriculture, Poland) - fastigiate with twisted, curled leaves, something like 'Newton Sentry' and "Crispum' were crossed. Collectors will adore this. NOTE: this link produces an automatic PDF download which may or may not load onto your screen.
Acer
rubrum,
saccharinum
saccharum,
and
A. x freemannii

Acer species R-Z, rubrum/x freemannii,saccharinum,saccharum, etc.


FIREFALL™


A. rubrum 'Florida Flame'

ACER010 - Acer x freemannii SHELINA'S BEAUTY™
ACER013 - Acer palmatum RED WINE® - Habit erect, strong. Leaves with
new tips very bright red, becoming green suffused and heavily tinged purple to dark red, some even bronzish-green or bronzed red, orange to red shades in fall. It is not "ever-red" in the Blloodgood sense.

ACER014 - Acer NORTHERN GLOW® 'Hasselkus' (A pseudosieboldianum x A. palmatum) - 20 ft. tall x 24 ft. wide, upright-spreading. Cold hardy USDA 4, giving palmatum-like looks a zone beter. Leaves green, deeply lobed, coarsely dentate to long-dentate margins, fall color bright orange and coral-red to dark red, very showy. Bred by Dr. Edward Hasselkus, University of Wisconsin, Madison.
ACER015 - Acer URBAN SUNSET™ 'JFS-KW187' (A. truncatum x A. platanoides) - 35 ft. tall x 20 ft. wide, compact, needling little pruning, narrowly pyramidal to upright-ovoid. Leaves dark glossy green, favoring A. truncatum for shape, silhouetted as an almost ratr-like or Liquidambar style look with broadly spaced lobes and deep lobing, fall color a rich, dark red, other times a rich orange to red Rmix. Cold hardy to USDA 4b. Jfschmidt.com, accessed 5.8.2015, their new introduction for 2015.
ACER016 - Acer buergerianum RAISING BLAZE 'EOAB1' - leaves very glossy, dark green, improved orange to red fall colors. Low seed production rate, therefore less chance of invasive behavior as some species seedlings and cultivars exhibit with high samara counts. Proven more heat tolerant in the southern US. Selected by Rusty Allen, Eastside Ornamentals, Athens, Georgia, US c. 2012. Literature: Dirr, M.A. 2012. In praise of noble trees. web artricle, plantintroductions.com, accessed 5.8.2015
ACER017 - Acer miyabei 'Butterball' - fall color reliably yellow, showy, if given enough sun. See http://www.montgomeryparks.org/activities/things_to_do/fall/documents/shf_presentation.pdf
ACER018 - Acer circinatum THREE CHEERS™ - 10-15 ft. tall x 6-8 ft. wide, twice as tall as wide in some cases, flame-shaped or ovoid, not a weak wild form but having uniform growth, an extrect shrub to small tree. Leaves of typical dimensions yet darker green than most. heritageseedlings.com, accessed 5.6.2015, their own selection.
ACER019 - Acer palmatum 'Kinky Krinkle' - 8 ft. tall x 4 ft. wide (10 years), upright. Leaves bright green, lime at first, distinctly and thinnly marked dark red to reddish-purple (1-5% surface), margin irregularly serrate to serrulate, crinkled look, 3-5-lobed to 75% deep but marginal crinkling is finer and more shallow, golden fall colors. Selected by Buchholz Nursery, accessed 5.19.2015.
ACER020 - Acer palmatum 'Peve Dave' - leaves very deeply lobed to 90% or more, lobes very narrow elliptic-linear, intermediate between species and Linearilobum Group, favoring the later, dusky pinkish-red, midribs and secondary veins more clearly pink to orangish-pink, later more reddish-purple with maturity, orange ot red shades in fall, can very fiery orange in the right conditions.
ACER021 - Acer platanoides 'Nowush' - semi-dwarf, densely compact and subglobose (from witches broom) at first, later more erect, narrowly ovoid to narrowly pyramidal, can be trained more columnar, numerous erect columns of foliage, not an odd bean-pole as some mutants, being well-branched with many laterals, appears to be a viable small tree for many applications in the landscape.  Leaves smaller, reduced in all parts, slightly and elegantly curled, very asymmetrical, often more deeply lobed than species (to 50-75% at times), lovely for the semi-incised look with many strong lobe and sub-lobe acuminate to acuminate-cuspidate apcies, not deformed as some species mutants, terminal lobe usually large and dominating,  fall color often a rich, showy gold.
ACER022 - Acer rubrum 'Jinse Qiutian' - leaves 5-lobed, distinctly light golden-brown in fall, photo appears to be more dark golden, 30 days of color. Published in Acta Horticulturae Sinica 42(2): 403-404 (2015)
ACER023 - Acer rubrum 'Yanhong' - leaves 5-lobed, very bright red in late October, best in early November, with 30-35 days of autumnal color. Acta Hort. Sinica 41(6): 1281-1282 (2014)
ACER024 - Acer rubrum 'Jinmaihong' - leaves 5-lobed, light red with golden-brown veins, beginning in October, best in early November, 30-35 days of autumnal color. Acta Hort. Sinica 40(12): 2549-2550 (2013)
--end of OROC Data Sharing



Acer saccharum 'Goldspire' compared to SNOWCONE® at the Cornell Plantations, Ithaca, New York. On paper they sound about the same but in reality...
Achillea

European Garden Flora
  177 cultivars

Hatch's Perennials: Acanthus to Aurinia, including Agave now combined at.....

\
Herbaceous Perennial Plants by Allan Armitage - a very popular treatise with lots of cultivar notes, identification of species information, and a broad general spectrum of information.

RHS/AHS Encyclopedia of Perennials by Rice (book, Amazon)
Plant Evaluation Notes by Hawke (article, Chicago Botanic Garden)




    179

ACHI001 - Achillea DESERT EVE™ (Spring Hill Nursery, nursery website)
ACHI002 - Achillea F2 FLOWERBURST and SUMMER Series (Takii Seeds)
ACHI003 - Achillea millefolium SONG SIREN™ LAYLA - 51-56cm tall x 30-36cm wide, upright, sturdy, compact. Flowers rays reddish-pink to medium pink, pale cream to white, non-fading. Darwinperennials.com, accessed 5.22.2015, their own selection.
ACHI004 - Achillea millefolium SONG SIREN™ LAURA - 51-56cm tall x 30-36cm wide, upright, sturdy, compact. Flowers rays rich ruby red to cherry, big central white disk, contrasting much, non-fading. Darwinperennials.com, accessed 5.22.2015, their own selection.
ACHI005 - Achillea millefolium SONG SIREN™ ANGIE - 51-56cm tall x 30-36cm wide, upright, sturdy, compact. Flowers rays clean medium pink, pale pink disc, limited contrast,, non-fading. Darwinperennials.com, accessed 5.22.2015, their own selection, new 2015.
ACHI006 - Achillea millefolium SONG SIREN™  LITTLE SUSIE - 51-56cm tall x 30-36cm wide, upright, sturdy, compact. Flowers rays medium to light pink, becoming all light pink, disc even paler but little contrast, non-fading. Darwinperennials.com, accessed 5.22.2015, their own selection.
ACHI007 - Achillea millefolium SONG SIREN™ PRETTY WOMAN - 51-56cm tall x 30-36cm wide, upright, sturdy, compact. Flowers rays orangisdh-red to scarlet, disk small,er off white, not contrasting nearly as much as LAURA. non-fading. Darwinperennials.com, accessed 5.22.2015, their own selection.
--end of OROC Data Sharing
Achimenes


Registered Gesneriads - The Gesneriad Society (plant society website, ICRA) - detailed plant descriptions, origins, parentage, etc.

Dibleys Achimenes Catalog (nursery website)


Acorus
14 cultivars

Hatch's Perennials: Acanthus to Aurinia, including Agave now combined at.....



ACOR001 - Acorus 'Golden Pheasant' (Perennial Resource)
Actaea
Hatch's Perennials 1.0-3.0 (PDF, New Ornamentals Society)



Hatch's Perennials: Acanthus to Aurinia, including Agave now combined at.....
Adenium
Most of the time there are between 600-1000 offers including new, rare, and exclusive cultivars. Beware of seeds unless you're a specialty, advanced collector as fancy varieties seldom come true. The seed may produce interesting phenotypes but perhaps only those a serous collector might want. Many items are from Thailand where breeding and selections are at a frencized, sophisticated pace.


Tropica Nursery (nursery website, gallery) - dozens of cultivars and lots of good data on new material

Siam Adenium (nursery website) - another major vendor with lots of rare stock and solid info.

King Adenium (nursery website, gallery) - another large Thai nursery with lots of rare, new clonal material and a fine image library.

Thai Adenium (nursery website)


New 2008 Adenium Variety from Thailand
Top 10 Adenium New Releases 2011
Top 10 Adenium Billboard Chart in Thailand
Top 10 Rosy Adenium
The Best Adenium from Thailand

Australian Adenium (nursery website)

Adenium in Cultivation by Dimmitt and Hanson (website article) - a multi-part article covering species and many cultivars. A good primer for the genus and advanced collecting.
Adenophora
Adiantum -
Hardy



Hatch's Perennials: Acanthus to Aurinia, including Agave now combined at.....



ADIA001 Adiantum capillus-veneris 'Alabama Lace' (USDA 7-10)
Adiantum -
Tender

Adonis
Aechmea


Bromeliad Cultivar Register by Bromeliad Society International (ICRA, plant society website)



Aeonium
Aeonium by Schultz (book, Exotic Plant Books) - hundreds of species and cultivar images, 215 pages, 2007 publication date.

HITS (House, Interior, Tropical, Succulent) Plants by Hatch - 2013-15 Early Preview Edition (PDF ebook, 400+ pages leading to 1300 pages in 2017)


Garden Web Forum (blog, gallery) - an interesting gallery


AEON001 Aeonium 'Mardi Gras' (Huntington Botanical Gardens) - simply the most colorful clone in the genus if not among all rosetted succulents. A "super wow" patent succulent.
Aesculus

Original cultivar.org key by Larry Hatch
103 taxa, most cultivars

  • More double-flowering clones for fruitless beauty - we have pink and white now, yellows should be possible
  • Get the true lavender-blue floral tones of A. californica into the more hardy species
  • Truly dwarf clones as dense, globose container trees in all flower colors
  • Aesculus x pavia can rebloom in fall - so that might be exploited for a fall-blooming clones
  • Strong, floriferous cut-leaves forms - those are nice blades but plants are weak in general
  • Floriferous columnar forms for small gardens



Bernheim Forest and Arboretum


Hatch's Cultivars of Woody Of Plants is our standard for the existing 90+ cultivars
AESC001 - Aesculus pavia 'Fishtaill' (Mark Weathington, Raulston Arboretum)
AESC002 - Aesculus turbinatra 'Marble Chip' (Broken Arrow Nursery) - variegated
AESC003 - Aesculus hippocastanum 'Lunar Patches' (Variegated Foliage)
--end of OROC Data Sharing
Your computer, tablet, phone, or book reader can have the latest cultivar encyclopedia for each genus in handy PDF form - the most complete cultivar references for more than 103 ornamental, landscape genera. CULTIVAR.ORG is a product of more than 35 years of work by leading horticultural taxonomist Larry Hatch and the hundreds of experts in the New Ornamentals Society and our experts partners around the world. We exceed your familiar plant manuals, horticultural society "complete" guides, and most websites by 3-20 times more cultivars and with much more specific, detailed data. For example, 159 Aucuba cultivars, 191 Astilbe, 274 Aquilegia, 109 Ajuga, 1032 Acer, 59 Abelia, 175 Aglaonema, and 103 Aesculus. For just $119.00, you have access to these huge, original datafiles up until 2018.

If you prefer to purchase volumes separately our Google Play Books Store has many of the same files for $7.20 to $20.00 each. CULTIVAR.ORG is however about 60% less expensive since you are mass-purchasing access at the Preferred Library Rate.
Aeschynanthus
Agapanthus Agapanthus: A Revision of the Genus by Snoeijer (book, Amazon)

Agapanthus for Gardeners by van Dijk (book, Amazon)

Grow Agapanthus by Duncan (book, Amazon)

Hatch's Perennials 1.0-3.0 - 192 cultivars (PDF, New Ornamentals Society)


Hatch's Perennials: Acanthus to Aurinia, including Agave now combined at.....


'Pavlova'

Agapanthus 'Blue Leap' (Monrovia)


AGAP001 Agapanthus QUEEN MUM™ (Southern Living Plants)

Agapanthus 'Twister' (Concept Plants)


Agarista
Agastache
70 cultivars



Terra Nova Nurseries - breeding program (nursery website, breeding) - interesting view of this leading breeding program, covering their goals and current achievements

AGAS001 Agastache GRAPE NECTAR™ (Skagit Gardens)
AGAS002 Agastache 'Rosie Posie' - 18-22 in. tall, compact, subglobose. Flower corolla bright, hot pink, calyx magenta-purple. Walters Gardens introduction 2015. Waltersgardens.com, accessed 4.10.2015
AGAS003 Agastache 'Peachy Keen' - 20-24 in. tall, compact, subglobose. Flower corolla "apricot peach", calyx purplish-pink. Walters Gardens introduction 2015. Waltersgardens.com, accessed 4.10.2015

'Summer Sunset'


'Blackadder' (Plantsmans Corner, Malcolm)

Trail Gardens Report (Raker) - a very useful set of images and detailed ratings - select the genus from the pulldown menu
Agave

Flora of North America
Agaves, Yuccas and Related Plants by Gary and Mary Irish (Amazon)

Unlike the NOS Agave Cultivar Checkist this file contains descriptions and many photos.


Hatch's Perennials: Acanthus to Aurinia, including Agave now combined at.....

Plant Delights - Galleries

Variegation in the Agaveae by Trelease (article, Google Books)

NOS Agave Cultivar Checklist (500+ taxa) (in Ornamentals Quarterly 1(2))


Agave striata 'Live Wires' (Plant Delights) - there is nothing else like this.

AGAV001 Agave 'Straight and Narrow' (A. bracteosa x A. stricta)(Plant Delights)
AGAV002 Agave x pumila 'Clusterfest' (Plant Delights)
Ageratum


Agerarum 'John Eustice' (HortScience subscription required)

Trail Gardens Report (Raker) - a very useful set of images and detailed ratings - select the genus from the pulldown menu
Aglaonema HITS (House, Interior, Tropical, Succulent) Plants by Hatch - 2013-15 Early Preview Edition (PDF ebook, 400+ pages leading to 1300 pages in 2017) - 175 cultivars

International Aroid Society - Cultivar Database Listing by Burch (website, plant society, ICRA cultivar register) - official cultivar register

cultivar-related articles list from Google Scholar - includes papers by Chen, Henny, and Henley and other cultivar breeders


This site is often an early informer for new Asian and mostly Thai cultivars, many rare, new clones sold here before anywhere else.



'Golden Bay'
'Scenic Bay'
'Moonlight Bay'
'Leprechaun'
'Key Lime'
'Mondo Bay'
'Diamond Bay' and 'Emerald Bay'

'Valentina'
'Super Pride', 'Tiara', etc.
Jazz Gem Series
'Cutlass' (Kraft Gardens)
'Pattaya Beauty'




Agrostemma
Ailanthus


Ajuga Hatch's Perennials 1.0-3.0 - 109 cultivars (PDF, New Ornamentals Society)

Hatch's Perennials: Acanthus to Aurinia, including Agave now combined at.....


'Pink Lightning'
Herbaceous Perennial Plants by Allan Armitage - a very popular treatise with lots of cultivar notes, identification of species information, and a broad general spectrum of information.

AJUG001 - Ajuga reptens 'Black Fox' - 5cm tall, 15cm tall in flower. Leaves very dark blackish-green, not having blackish-purple as BLACK SCALLOP, margins distinctly undulate, crenate to crenate-dentate. Flower corolla blue. Selected by Jan Spruyt, vasteplant.be, accessed 5.16.2015, under their JS® trademark .
--end of OROC Data Sharing
Akebia

Cultivar.org key by Larry Hatch

Albizia

  • Very solid wilt and disease resistant in mainstream cultivars
  • Tom Ranney's cross of weeping with chocolate tones is useful
  • Summer red foliage
  • Use of A. coreana with it's true light yellow flower colors to add sunset and orange colors (crossed with pink A.j.)
  • Stronger, less brittle branching
  • More weeping and spreading mounds for use as patio plants

Alcea
(Althaea in
part)



Hatch's Perennials: Acanthus to Aurinia, including Agave now combined at.....

http://www.swallowtailgardenseeds.com/ (seed catalog, commercial website) - more than 33 seed strains in this one genus. A great place to start a budget, high quality collectionas with some other genera they offer.

ALCE001 - Alcea rosea SPRING CELEBRITIES™ in 9 colors, APRICOT being new in 2015 (Takii Seeds)
ALCE002 - Alcea ficifolia 'Las Vegas' (Walters Gardens) - at long last, a lovely lobed ficifolia type leaf with simple, old school single flowers.
--end of OROC Data Sharing


Alcea rosea 'Halo Red' is one of the prettiest bicolors I've seen in this genus. From age 5 to 22 or so I grew with my mom alot of hollyhocks of both this species and A. ficifolia, handling rust well at times and giving up at others. I truly wish we had something this pretty then. This Thompson & Morgan gem is a Fleuroslect Approved Novelty and it's neither your grandma's nor your mom's hollyhock. Image courtesy of fleuroselect.co . Click image to enlarge.
Allamanda
HITS (House, Interior, Tropical, Succulent) Plants by Hatch - 2013-15 Early Preview Edition (PDF ebook, 400+ pages leading to 1300 pages in 2017)
Allium Alliums: The Ornamental Onions by Davies (book, Amazon)

RHS/AHS Encyclopedia of Perennials by Rice (book, Amazon)

NODGeo:


Allium Central by McDonough (website, galleries) - Mark McDonough is one of leading experts on the genus and this page covers new cultivars, hybridization, species checklists, ID aids, resource links, bibliiography, and much more.
Alnus

Jan De Langhe



A. maritima 'September Sun'

Alnus glutinosa 'Greenwood'
Alocasia
HITS (House, Interior, Tropical, Succulent) Plants by Hatch - 2013-15 Early Preview Edition (PDF ebook, 400+ pages leading to 1300 pages in 2017)


Interspecific Relationships of Alocasia Revealed by AFLP Analysis by Chen, Devanand, Henny, etc. all. (J. Hort. Sci. Biotech. 79(4)) - 23 cultivars and 17 species studied in detail.



Alocasia 'Loco'. Click image to enlarge.


International Aroid Society - Cultivar Database Listing by Burch (website, plant society, ICRA cultivar register) - official cultivar register

Cultivar articles from Google Scholar




'Mayan Mask' + 'Zulu Mask' (Brians Botanicals)
Aloe Aloes: The Definitive Guide by Carter, Newton, Lavranos, and Walker (book, Amazon)

Guide to the Aloes of South Africa by van Wyk and Smith (book, Amazon)

Aloes of Southern Africa by Smith (book, Amazon)

The Genus Aloe by Reynolds (book, Amazon) - we are told this has cultivar data

In the works....


Kara Nursery (nursery catalog website) - a notable collection on sale

Aloe Hybrids - An Online Database of Aloe Hybrids (special interest website, cultivar database)

Sunbird Aloes (nursery catalog, catalog reference) - an impressive presentation of new and good material

Aloe-Aloe Horticulture

San Marcos Growers (nursery website, gallery) - a superb source of data on California and western US cultivars - they sell 130 taxa

An Introduction to Aloe Hybrids by Stein (website, Davce's Garden)



Kelly Griffin Hybrids:

Aloe-Aloe Channel including ALWAYS RED™ and WINTER BELLS™



Aloe DIEGO™ 'White Lightning' from master hybridist Kelly Griffin is a true revolution in the way we see this genus in our collections. The plant for one is more than half white, just the right amount of bright olive-lime to balance it and pure white teeth - not a shade of red or pink anywhere. There are other white and green aloes and this one gets it just right in terms of colors, markings, form, and vigor. Now that the former collector's item 'White Lightning' has a trademark and mass marketing, they are cheaper than dirt and might be in local greenhouse. Click image to enlarge.
Alpinia
HITS (House, Interior, Tropical, Succulent) Plants by Hatch - 2013-15 Early Preview Edition (PDF ebook, 400+ pages leading to 1300 pages in 2017)


Development of Heliconia and Alpinia in Hawaii: Cultivar Selection and Culture by R.A. Criley (university article, PDF article, ISHS)
Alstroemeria
ALST001 'Tangerine Tango' (Cornell University)
ALST002 "Mauve Majesty' (Cornell University)

http://www.alstroemeria.com (nursery website)
http://www.suasuque.com/varieties.html
http://www.alstroemeriaselect.co.uk/
Royal Van Zanten
http://www.alstroemeria.ca/
Alternanthera


Variations of Alternanthera by Larry Hatch (plant society video, New Ornamentals Society)



ALTE001 - Alternanthera SOMMELIER™ Series (HortCouture)
--end of OROC Data Sharing



We got Alternanthera ficoidea 'Christmas Tree' after the YouTube video was produced so we wanted to add it as a supplement. This gem has made the terrarium circuit of late and we have yet to discover it's ultimate origin. (Please email us if you know). It is a much smaller, more undulate and crinkly blade than the other solid green A. ficoidea and some them can be as lustrous and dark. 'Christmas Tree' is in some ways the ultimate mini indoor shrub or tree for terraria (which is the correct plural of terrarium) and might have bonsai potential as my oldest Alts of other cultivars do get a bit woody in the stem/trunk. If Coleus can be bonsai this is surely worth an experiment or three. Many plants you see online are not as well grown as this and might hardly deserve to bear the cultivar name. Despite many efforts with lighting, this is a truly difficult plant to photograph. It's blackish-green shades seem to disappear into the dense shadows of the canopy and other leaves reflect even the softest light from the camera or overhead lamps. Please click the picture to enlarge it.

Amelanchier

Original cultivar.org key by Larry Hatch

North American Landscape Trees by Jacobson (book,


Amazon)- it's difficult to pick from among the modern woody gurus like Dirr, Hilier, etc. (and you do not have to)  but Arthur Lee Jacobson's study appears to a good sense of modern material to the 1990's.



Revised International Registry of Cultivars and Germplasm of the Genus Amelanchier by Zatylny andf St-Pierre (PDF article)


Amelanchier alnifolia STANDING OVATION™ 'Obelisk'


'R.J. Hilton'

Ammophila
AMMO001 - Ammophila arenaria 'Belgian Coast' - 80cm tall, becoming 90cm tall in flower, taller than some forms. Leaves wider than species typical, greyish-green. Selected by Jan Spruyt, introduced 2014.
Armoracea

Okay. I know. Here's Larry getting into wierd, variegated vegetables again. Yes. I plead guilty. This is Armoracea rusticana 'Variegata' as seen at the US National Herb Garden, a very curious and odd, white-mottled and sectored creation of complex and not very accessible beauty. Anything that is this...well semi-cute...and can yield a savory, potent sauce for my roast beef sandwiches gets a couple of minor passes in the aesthetics department. I usually award an extra 10 points for variegation in most any genus and here were have a very rare choice that may not be your choice. It has some aspects in common with the mottled Symphytum but I think it prettier than all of them in terms of white markings. If you had a small patch of say 5-10 plants of this, keeping it vigorous with lots of leaf trimming, it might be a real green and white dynamo as a bedding plant. This cultivar can be up to 65% white in the leaf canopy so give it a try and get your roast beef a simmerin'. Click image...this ain't no lousy thumbnail, "I shot it with my cellphone" site.
Amorpha
Ampelopsis
Amsonia
AMSO001 - Amsonia tabernaemontana 'Stella Azul' - 80-100cm tall. Leaves green. Flower corolla pale blue. Selected by Jan Spruyt, vasteplant.be, accessed 5.16.2015, under their JS® trademark .

AMSO002 - Amsonia tabernaemontana 'Short Stack'. Click image to enlarge. Image not part of OROC Data Sharing.



Hatch's Perennials: Acanthus to Aurinia, including Agave now combined at.....

Anemone
and

Anemonella


ANEM001 Anemone x hybrida WHITE SWAN™ (Monrovia)
ANEM002 Anemone x hybrida FANTASY™ 'Pocahontas' (Plants Noveau)




Hatch's Perennials: Acanthus to Aurinia, including Agave now combined at.....



Anemonella thalictroides 'Green Hurricane' is a refined, double, pale lemon-lime version of this lovely diminutive species. This entire genus is not even tried by people with perennial savvy for their entire life and yet rock garden collectors know it fairly well. You can see from the scale of the four inch label it's a real tiny gem with flowers still under the width of an American dime. Click image to enlarge.
Angelonia Suntory SUNGELONIA Series


SERENA® Series (PanAmerican Seeds)


Trail Gardens Report (Raker) - a very useful set of images and detailed ratings - select the genus from the pulldown menu
Anigozanthos
List of Registered Cultivars Derived from Australian Native Flora by Australian Cultivar Registration Authority (ICRA, cultivar register, ACRA, Australian National Botanic Gardens) - many of the new cultivbars described in rich retail
Antennaria
Anthemis
Hatch's Perennials: Acanthus to Aurinia, including Agave now combined at.....
Anthurium
HITS (House, Interior, Tropical, Succulent) Plants by Hatch - 2013-15 Early Preview Edition (PDF ebook, 400+ pages leading to 1300 pages in 2017)

International Aroid Society - Cultivar Database Listing by Burch (website, plant society, ICRA cultivar register) - official cultivar register

SUMMER PASSION® 'Anthulyha''

Harold Tanouye with Green Point Nursery, Hawaii. A fascinating discussion a pioneering horticultuist on the world Anthurium industry (record this for our horticultural history)



Anthurium 'Secret' (Agristarts)

Evaluation of Twenty-One Potted Anthurium Cultivars Grown from Interior Use by Henley and Robinson (PDF article, Proc. Fl. State Hort. Society) - a scholarly study of 21 cultivars with nice descriptions and evaluation data.

New Varieties of Anthurium andraenum from Brazil by Tombolato et. al (PDF article)


Aphelandra
Aquilegia

European Garden Flora
Columbines by Nold (Amazon)

Herbaceous Perennial Plants by Allan Armitage - a very popular treatise with lots of cultivar notes, identification of species information, and a broad general spectrum of information.


RHS/AHS Encyclopedia of Perennials by Rice (book, Amazon)

Hatch's Perennials 1.0-3.0 - (PDF, New Ornamentals Society) - 274 cultivars, most described


Hatch's Perennials: Acanthus to Aurinia, including Agave now combined at.....


Touchwood Nursery (UK National Plants Collection)

Plant World Seeds (57 taxa)


Aquilegia collection 2010 (A.vulgaris cultivars)
Arabis
Hatch's Perennials 1.0-3.0 - 47 cultivars (PDF, New Ornamentals Society)

Hatch's Perennials: Acanthus to Aurinia, including Agave now combined at.....


RHS/AHS Encyclopedia of Perennials by Rice (book, Amazon)
Aralia
ARAL001 - Aralia cordata 'Gotemba' - 5 ft. tall x wide. Leaves bright yellow to charteuse-yellow. Fruits dark purplish-black, typical, but contrasting much with the foliage.  Selected by Dan Hinkley, marked in the US by Monrovia. This clone is thought to be different from tbhe more widely sold (May 2015) 'Sun King' which is known to be 2-3 ft. tall and imported by Barry Yinger from Japan.
Araucaria
RHS Conifer Cultrivar Registers (Royal Horticultural Society, ICRA)
Arbutus
Ardisia
ARDI001 - Ardisia crenata RED HOT EMBERS™ 'sPG-3-001' - 2-3 ft. tall x 2 ft. tall, slow but very large for the species in time. Leaves effectively very dark red, margins more of a dark glowing pink overlaid in red on close inspection, new growth more hot pink, blades folded and boat-shaped, revealing a bright pink underside at first, fairly rugose. Flowers pink-tinged. selected by  Southern Plant Group.
Arisaema

Flora of China
The Genus Arisaema by Gusman and Gusman

Plant Delights Gallery by Avent (nursery website, gallery) - outstanding images of cultivars and unnamed clones, many very rare and spectacular.



ARIS001 Arisaema 'Crossing Over' (A. heterophyllum x A. fargesii)(Plant Delights, new 2015)


Hatch's Perennials: Acanthus to Aurinia, including Agave now combined at.....

Aristolochia A
ARIST001 - Aristolochia macrophylla 'Chimney Tops' (Plant Delights Nursery)
Armeria

Hatch's Perennials: Acanthus to Aurinia, including Agave now combined at.....
Aronia



ARON001 – Aronia arbutifolia ‘Hannah Coulter’ – habit more compact. Fruit very abundant compared to species typical. Leaves bright orangish-red in fall. Proven more heat and humidity tolerant. Found by Norman Bertels in Jackson County, North Carolina, named for his granddaughter. Camforest.com, accessed 4.23.2015


Breeding Better Aronia Plants by M.H. Brand - paid subscription or article purchase required
Artemisia

Hatch's Perennials: Acanthus to Aurinia, including Agave now combined at.....
Arum
Arum italicum and it's Cultivars by Rice (article, The Plantsman, RHS) - subscription to back issue required




Hatch's Perennials: Acanthus to Aurinia, including Agave now combined at.....

Aruncus
ARUN001 - Aruncus aesthusfolius '      . Selected by Zillmer, intro. 2014, www.perennial-youngplants.com, accessed 6.7.2015

Hatch's Perennials: Acanthus to Aurinia, including Agave now combined at.....




ARUN001 - Aruncus aethusifolius 'Charakter' - full, dense. Stems red. Flowers white. Selected by Zillmer, intro. 2014, www.perennial-youngplants.com, accessed 6.7.2015
ARUN002 - Aruncus aethusifolius 'Elegance' - flowers well above foliage, often hanging over it. Selected by Zillmer, intro. 2014, www.perennial-youngplants.com, accessed 6.7.2015
ARUN003 - Aruncus aethusifolius 'Filigran' - flower panicl;es more slim, later bloom start. Leaves with showy fall colors.      . Selected by Zillmer, intro. 2014, www.perennial-youngplants.com, accessed 6.7.2015
ARUN004 - Aruncus aethusifolius 'Opulenz' - leaves a brighter, "fresh green". Flowers white, earlier in season than typical.        . Selected by Zillmer, intro. 2014, www.perennial-youngplants.com, accessed 6.7.2015
ARUN005 - Aruncus aethusifolius 'Porzellan' - compact hab it.Leaves bright, fresh green, Flower off-white.  Selected by Zillmer, intro. 2014, www.perennial-youngplants.com, accessed 6.7.2015
PENDING - Aruncus aethusifolius 'Bronze' - stems bronze to red, showy. Name violates the ICNCP "simple adjective" or color name guidelines. Selected by Zillmer, intro. 2014, www.perennial-youngplants.com, accessed 6.7.2015
Arundo




ARUN001 - Arundo donax 'Peppermint Stick' (Plant Delights)
Asarum

Hatch's Perennials: Acanthus to Aurinia, including Agave now combined at.....



ASAR001 Asarum debile 'Coveralls' (Plant Delights)
ASAR002 Asarum forbesii 'Mercury' (Plant Delights)
ASAR002 Asarum nobilissimum 'King Kong' (Plant Delights, new 2015)
Asclepias
Hatch's Perennials: Acanthus to Aurinia, including Agave now combined at.....
Asparagus
ASPA001 - Asparagus sprengeri 'Graham's Cracker' (Plant Delights, new 2015) - 15 in. tall x wide, denser, upright. Leaves golden in fall. USDA 7a hardiness,  hardy for many years  in originator's Greensboro, North Carolina garden. Selected by Graham Ray, Greensboro, NC.
Aspidistra
Plant Delights Gallery by Avent (nursery website, gallery) - numerous common and rare clones, many offered from the nursery


Aspidistra lurida 'Amanogawa', a lovely mix of stripes, big sectors, and yet also overlaid with fine specklings. Very pretty with it's twelve shades of chartreuse to dark green.
Asplenium Tender and Tropical Cultivars


Asplenium nidus 'Leslie' from our NOS Indoor Cultivar Trials of 2012.
Aster -
Annual
including
Callistephus

Aster -
Perennial

The Gardeners Guide to Growing Asters by Picton (book, Amazon)


Hatch's Perennials: Acanthus to Aurinia, including Agave now combined at.....


RHS/AHS Encyclopedia of Perennials by Rice (book, Amazon)

Picton Garden/Old Court Nurseries (nursery website) - an outstanding catalog from the UK experts in this genus

Herbaceous Perennial Plants by Allan Armitage - a very popular treatise with lots of cultivar notes, identification of species information, and a broad general spectrum of information.


Asters at Wisley 1906-1907 (RHS Journal, historical document) - while this is a very old document, the 305 cultivars and other taxa it describes with rich detail and origins make it a very useful reference  to the current age, a true ebook on perennial asters.

These are a new benefit of this affordable online data program.
Biographies in Ornamerntal Horticulture (subcriber password required to open links below):
Surnames A to H  :  Surnames I to Z


Astilbe

Cultivar.org original key by Larry Hatch

The NCCPG National Colllection of Astilbe by Noblett  (journal article) - apparently the Landland Horticulural Society and UK NCCPG has published a checklist. The confusing links from this author, LHS, Curtis Botanical Magazine, NCCPG, and others left us puzzled .At one point John Wiley & Sons asked asked to pay $347 on a credit card. Can anyone help us through this maze for an affordable checklist?

RHS/AHS Encyclopedia of Perennials by Rice (book, Amazon)

Hatch's Perennials 1.0-3.0 - 191 cultivars (PDF, New Ornamentals Society)

Hatch's Perennials: Acanthus to Aurinia, including Agave now combined at.....





ASTI001 - Astilbe 'Chocolate Shogun' - 14-24 in. tall. Flowers light pink with darker pink base tints. Foliage distinctly textured (sunken veins), rich purplish-brown, brownish-maroon, to bronzish-purple, petioles more dark purplish-red to violet-red.
ASTI002 - Astilbe chinensis 'Mighty Red Qin' (Plant Delights)
ASTI003 - Astilbe 'New Wave' - 50-60 cm tall x wide, quick-multiplication of clump. Flower and inflorescence uniformly light pink throughout, a very consistant color without mixed pink tones, spikes erect, denser than 'Europa', more uniform pink coloration than 'Peach Blossom', less medium pink shades in it than 'Elizabeth Bloom'. Leaves glopssy dark green. US Patent #25383 on March 24, 2015 to Henricus Verduin, Netherlands from open-pollinated 'Europa', selected 2006.
ASTI004 - Astilbe 'Honky Tonk' -  Flowering stems very numerous, sturdy, upright, suitable as cut flower, stronger plant than 'Rheindland' and a richer rose-pink, richer, darker pink than 'Touch of Pink',  rich but clear shade of pink. Leaves medium green. US Plant Patent #25382 on March 24, 2015 to Henricus Verduin, Netherlands. as spontaneous seedling 2005.
--end of OROC Data Sharing


Athyrium
ATHY001 - Athyrium niponicum 'Joy Ride' - 20 in. tall x 36 in. wide, vigorous. Fronds distinctly incised, apically crested, many of these segments highly ramified (not a simple, small apical crest), one of the more elaborately crested fern clones in any genus, a petticoat look in fact, glaucous, bluish-green, familiar silvery centers. Plantdelights.com, accessed 6.7.2015, tehri own selection, introduced 2015.

ATHY002 - Athyrium niponicum 'Thrill Seeker' - 20 in. tall x 20 in. wide. Fronds bluish-green, highly tinged silver, not just at the central zone, often quite silver in the apical half, more green at the base, older fronds more olive green, contrasting, long apical crests, more divergent and flat than 'Joy Ride' and less 3-dimensional than it. Hans Hansen introduction 2015, distinct from 'Joy Ride' in both color distribution and crest morohology.

Hatch's Perennials: Acanthus to Aurinia, including Agave now combined at.....

Aucuba Hatch's Cultivars of Woody Plants - 159 cultivars (New Ornamentals Society)


Plant Delights Nursery (nursery website, reference catalog) - Tony Avent and company are known for their perennial treasures but Aucuba is one of their target woody genera. They are doing much to keep the former Asiatica Nursery intros from Japan as well as unique, new clones alive and affordable.Among their new and rare clones are 'Pacman', 'Cecil-Alice'. 'Hosoba Hoshifu',  and 'Bored Female'.

More than 80 cultivars were recently on display from the Raulston Arboretum


Aucuba - our standard for 159 existing cultivars in Hatch's Cultivars of Woody Plants
AUCU001 - Aucuba japonica 'Subaru' (Hawksridge Farms)
AUCU002 – Aucuba japonica ‘Overlook’ – leaves larger, very glossy, margined cream. Cistus.com, accessed 4.22.2015, their own selection as sport near Overlook, Oregon
AUCU003 – Aucuba japonica ‘Merced’- 4 ft. tall x 3 ft. wide. Leaves mostly gold, slight green speckling. Cistus.com, accessed 4.22.2015, their own selection
AUCU004 – Aucuba japonica ‘Lisa White’ – Plant compact. Leaves 4-5 in. long, narrow, speckled yellow. Fruit “very pale”, female clone. Cistus.com, accessed 4.22.2015, named for Lisa White via Ozzie Johnson
AUCU005 – Aucuba japonica ‘Clear Picture’ – 4 ft. tall x 3 ft. wide, dense, subglobose to erect. Leaves centrally marked gold to 80-95% surface, margins dark green with some gold specking. Cistus.com, accessed 4.22.2015.
AUCU006 – Aucuba japonica ‘Alabai’ – leaves dark green, spotted creamy-yellow in a swirled pattern. Cistus.com, accessed 4.22.2015, their own selection
AUCU007 - Aucuba japonica var. borealis 'Bored Female' - 4 ft. tall x wide. Leaves very glossy, blackish-green. USDA 6b-7, more hardy as the variety. Female clone. Plantdelights.com, accessed 4.22.2015, their own selection
AUCU008 - Aucuba japonica 'Golden Girl' - 1m tall x wide, very compact, shorter internodes. leaves heavily mottled and spotted yellow, chimera 25-60% surface, variable, some young plants in spring afre said to be mostly gold, 80-90% surface, still very shapr in the blade, apex very long acute to acuminate. Fruit red, a female clone. Peter Moore cross of 'Nana Rotundifolia' x 'Crotonifolia' in 1993, offered exclusively in the UK by New Place Nurseries, npnurseries.co.uk
Bredbypetermoore.co.uk, accessed 5.29.2015.
---end of OROC Data Sharing
Azara
Azara serrata 'Maurice Mason' (RHS, Nomenclatural Standard, JSTOR)
Azara serrata ANDEAN GOLD (Monrovia Nursery, Dan Hinkley)

Your computer, tablet, phone, or book reader can have the latest cultivar encyclopedia for each genus in handy PDF form - the most complete cultivar references for more than 103 ornamental, landscape genera. CULTIVAR.ORG is a product of more than 35 years of work by leading horticultural taxonomist Larry Hatch and the hundreds of experts in the New Ornamentals Society and our experts partners around the world. We exceed your familiar plant manuals, horticultural society "complete" guides, and most websites by 3-20 times more cultivars and with much more specific, detailed data. For example, 159 Aucuba cultivars, 191 Astilbe, 274 Aquilegia, 109 Ajuga, 1032 Acer, 59 Abelia, 175 Aglaonema, and 103 Aesculus.

 Please click the logo above for details.
Baccharis
BACC001 - Baccharis halimifolia 'Baccador' (Minier Nurseries) - a unique gold-leaved clone
Baptisia

Cultivar.org original key by Larry Hatch
Hatch's Perennials 1.0-3.0 - (PDF, New Ornamentals Society)
Baptisia


Revenge of the Redneck Lupines by Avent (website article, Horticultural Magazine, June 2002)

Chicagoland Grows® (website, gallery) - info and images on the newish Chicago Botanic Garden hybrids


DECADENCE Series by Proven Winners
Creating Baptisia Hybrids with Jim Ault



BAPT001 Baptisia 'Vanilla Cream' (Wayside Gardens)
BAPT002 Baptisia alba var. macrophylla 'Pearl River' (Rare Find Nursery)
BAPT003 Baptisia 'Blonde Bombshell' (Plant Delights)
BAPT004 Baptisia minor 'Melissa Blue' - 18-24 in. tall, dense as the species. Flowers bluish-lavender, numerous. Fruit with showy pack bods in summer. Origin: Plant Delights, trailed as A1T-002 from seed collected in Melissa, Texas. A seed strain and not a clone.
BAPT005 Baptisia 'Blueberry Sundae' (image, Government of Canada)
BAPT006 Baptisia 'Dutch Chocolate' (image, Government of Canada)
BAPT007Baptisia minor var. minor 'Blue Bonnet' (Plant Delights, new for 2015)
BAPT008Baptisia 'Pink Truffles' - 30-36 in. tall, compact, subglobose. Leaved medium green. Flowers mostly light pink, also tinged violet, keel yellow, overall, paler lavender-pink with age. Walters Gardens 2015. Proven Winners 2015-2016. Waltersgerdens.com. accessed 4.10.2015
BAPT009Baptisia 'Blue Towers'- 40-54 in. tall, inflor. 20 in. tall, upright, tower-like, sturdy narrowly vase-shaped, free of excessive basal foliage so as to permit companion plant around it. Leaves glaucous, bluish-green. Flowers periwinkle blue to pale lavender-blue to bluish-purple. Origin: Plant Delights Nursery, hybrid of B. australis x B. alba hybrid, trailed as PDN2004-157. Award: 2014 Green Thumb Winner, Direct Gardening Assoc. Plantsdelights.com, accessed 4.10.2015
BAPT010Baptisia 'Cinnamon Toast' - 36 in. tall x 30 in. wide. Flowers "cinnamon-plum over buttery yellow" . Introduction: Songsparrow.com, accessed 4.10.2015, their exclusive introduction
BAPT011 - Baptisia 'Brownie Points' - 36-40 in. tall. Flower infl. to 10 in. long, corolla very dark gold to caramel tones, tinged very dark golden-brown accented with shades of true brown and butterscotch, not fading to yellow, blooms late for the genus. Selected by Hans Hansen, Walters Gardens, intro. 2015
BAPT012 - Baptisia DECADENCE® 'Sparkling Sapphires' 30-36 in. tall in. tall. Flower corolla very rich, dark violet-blue, far darker than B. australis as typical, greener, near lime keel adds slight color at close range. Selected by Hans Hansen, Walters Gardens, intro. 2015
BAPT013 - Baptisia 'Grape Taffy' - 24-30  in. tall. Flower corolla a true grape candy or grape soda purple (reddish-purple to violet-purple), pale greenish-yellow keel adds contrast, especially in young flowers. Selected by Hans Hansen, Walters Gardens, intro. 2015
Pending Baptisia 'B Minor' (Song Sparrow), registration pending as this may be a rename or confusing cultivarization of the the species Baptsia minor var. minor.

Herbaceous Perennial Plants by Allan Armitage - a very popular treatise with lots of cultivar notes, identification of species information, and a broad general spectrum of information.
Barbarea

Begonia

European Garden Flora
Begonias: Cultivation, Identification, and Natural History by Tebbitt (book, Amazon)

Begonia: The Complete Reference Guide by Thompson and Thompson (book, Amazon) - not so complete any more but still the standard reference from 1981. Get this and Tebbitt and you have things covered.

hardy-perennializing -





USDA-ARS - Cold hardy or low temperature production

American Begonia Society (website, society) - numerous resources including cultivar registration data, a gallery of taxa, and source links. The ABS Registered Begonias pages take you straight to the data.

The Tuberous Begonia: It's History of Cultivation by Wynne (PDF book, Google Books)

Communism meets cultivars: fresh from our cultivar taxonomy-world politics-mega maniacal bin is Begonia x tuber-hybrida 'Kimjongilia',  named for the late North Korean leader. Kim Jong-il , evil dictator and fanatical Begonia collector could not understand why real, international botanists would assign a new species name to this mere interspecific cross; and we are told it's horticultural merits and uniqueness are limited. Had these silly, unwilling botanists been in his country they'd be pushing up fat sprays of semperflorens-culturum by now.  In 1988, a Japanese breeder Kano Motokeru of Japan gave this hybrid as a gift between Japan and Korea. "In praise of great man" apparently tens of  thousands of plants are sent from all over the world to the flower-drenched Kimjongilia festival - and curiously in their gallery the Begonias appear identical in all ways as if grown in a single greenhouse! You my friends are not a serious Begonia collectors until you have bulldozed an entire housing development and hauling all the people's stuff (before they came home from their factory torture) to a dump to expand your trial grounds by a few acres. With apologies to Mel Brooks: It's good to be Begonia King. Apparently this Begonia-based Kimjongilia Festival has expanded to 60 nations including the US and Russia - I didn't hear about it so I'm calling Ticket Master tomorrow and calling my travel agent to give her a strong reprimand. This is surely the most loony-legitimate cultivar video on earth. (click icon)



Begonia COOLL BREEZE™ Series (Terra Nova)


North West Begonia Society show 2012
B. 'Bunny Hug'

Trail Gardens Report (Raker) - a very useful set of images and detailed ratings - select the genus from the pulldown menu
Begonia
x rex-culturum
(the B. rex
hybrids)

B. x rex-cultorum 'Blueberry Sorbet' (Steve's Leaves)

Begonia x rex-cultorum Shadow King™ Series (GreenFuse Botanicals)
Begonia Rex-culturum Group Bulletin (PDF, RHS Trial Report)


Begonia x rex-cultorum 'Ruby Slippers', image courtesy of and copyright owned by www.terranovanurseries.com, is one of the brightest and most exciting clones we've found in a long time. Their entire recent line of hybrid rex material is not only breaking into new color combos but gives the species more winter hardiness for southern and western gardens.The true violet-pink metallic edge is uniform for pigment (but not texture), reflecting much glorious light, and contrasting finely with the dark black, lobed center. Click image to enlarge.
Bellis
Bergenia

European Garden Flora


Berberis

Hatch's Cultivars of Woody Plants - 62 cultivars (PDF ebook, New Ornamentals Society)



AFLP Identification of Berberis thunbergii Cultivars,Iinter-specific Hybrids, and Their Parental Species by Lubell, Brand, and Lehrer (PDF article, University of Connecticut) - very fascinating, practical study.

'Daybreak', a Mike Dirr production

BERB001 - Berberis thunbergii SUNJOY® TANGELO
BERB002 - Berberis thunbergii 'Lutin Rouge' (Plantarium.nl)
BERB003 - Berberis thunbergii SUNJOY® CITRUS 'Koren' - 2-3 ft. tall x 2-4 ft. wide, compact, subglobose, improved form over older 'Aurea'. Leaves bright yellow, subscorch resistant. US patent #24818. Springmeadownursery.com, accessed 4.30.2015
BERB004 - Berberis thunbergii SUNJOY® MINI SAFFRON 'Kasia' - 1.5-2.0 ft. tall x 2-4 ft. wide, dwarf, dense, mounded, smaller than CITRON. Leaves bright yellow, new growth tinged orange, subscorch resistant, fall color adds orange to red shades. US patent #24817. Springmeadownursery.com, accessed 4.30.2015
BERB005 - Berberis TINY N' SPINY® 'Bokratin' - 40cm tall, low, compact, evergreen, designed as tough, weed-covering, woody ground cover Leaves bright green, slightly tinged bronze in new growth, generally green all year. Flowers light yellow. Rust resistant.
In: http://www.boot.nl/en/text/89/Trees, accessed 8.6.2016
Berberis thunbergii LAMBRUSCO™ 'BailElla' - 2-3 ft. tall x 3-5 ft. wide, compact, spreading-mounded, dense. Leaves light red becoming dark burgundy tones.
Or, in: www.baileynurseries.com, accessed 6.24.2016, http://www.firsteditionsplants.com/lambrusco-barberry

Berberis thunbergii MOSCATO™ 'BailAnna' - 2-3 ft. tall x 3-5 ft. wide, compact, spreading-mounded, dense. Leaves bright green, thin peach orange margin, mostly medium green by summer
Or, in: www.baileynurseries.com, accessed 6.24.2016, http://www.firsteditionsplants.com/moscato-barberry

Berberis thunbergii 'Fireball' - 1-2 ft. tall x 1-2 ft. wide (5 years), later larger, dense, compact, subglobose to mounded. Leaves bright "fiery red", more of a pinkish-red to rose-red than a dark maroon-red of older clones. Rust resistant to date. Or: Czech Republic, US Patent #21000 Web:
http://planthaven.com/plant/berberis-fireball/, accessed 4.6.2016




---end of OROC Data Sharing

B. thunbergii 'Starburst' (Hillier Garden Centres)
Betula

Jan De Langhe
Manual of Woody Landscape Plants by Dirr (book, Amazon) - very useful evaluations of cultivars, many quite new, from one of the top experts

Betula in the world and collections by P. Spoelberch - a stunning photographic study in 229 pages of wild and rare garden birch hosted by the Arboretum Wespelaar and from a presentation of the International Dendrological Society's Birch Workshop in 2011.

Proceedings of the Betula Symposium 1992 (International Dendroliogy Society) - 111 pages



Research of Birch Cultivars by Paul Bartlett of Stone Gardens (PDF) - a very impressive cultivar checklist with loads of historical info. This is the newest and best document.

Checklists of Cultvars in Betula by Santamour and McArdle (PDF) - the 1989 benchmark for the genus from the US National Arboretum.


'Fargo'



BETU001 - Betula albosinensis BLASON (Minier Nurseries) - a curious orangish-red bark over most of the trunk, frosted too.
BETU002 - Betula costata CINNAMON CURLS™ (North Dakota State University)
BETU003 - Betula utilis 'Jim Russell' (Arboretum Wespelaar, their own selection)
BETU004 - Betula PARKLAND PILLAR™ 'Jefpark' - 40 ft tall x 6-7 ft. wide, vigorous, columnar, more narrow, erect, and dense than DAKOTA PINNACLE®.  Leaves dark green, fall color not notably showy. Found at Parkland Nursery, Alberta, introduced by Jeffries Nurseries c. 2014.
--end of OROC Data Sharing


  • More heat tolerant (like B. nigra) clones but with lighter, brighter bark in pinks, creams, and white
  • Weeping, elegant cut-leaved B. nigra 
  • Higher borer resistant for longer life
  • New bark color combinations using Asian species to emphasize true pinks, orange, creams, tans, etc.
  • New leaf colors from purple-leaved x gold-leaved crosses, then these made cut-leaved and weeping too
  • "Complete package" dwarf birch for home gardens, borer free, very compact, slightly weeping perhaps, flawless white bark (the classic look), dark leaf
Bignonia
Billardiera
Bletilla
Boehmeria

BOEH001- Boehmeria nipononivea 'Glow Light' (Plant Delights) - 36 in. tall 5-6 ft. wide, vigorous. Leaves light yellow to  medium, glowing yellow (if strong sun), older leaves a very pale green to weak lime. Introduced by Barry Yinger, Asiatica Nurseries, now closed, and since that time marketed by  by Plant Delights. 
Bolax
Boltonia

BOLT001 - Boltonia decurrens 'Warrior's Blush' - 80cm tall in leaf, 150cm tall in flower. Flower rays pleasant light pink, disc medium yellow to neare gold, large, some-shaped. .Selected by Jan Spruyt, vasteplant.be, accessed 5.16.2015, under their JS® trademark .
Bougainvillea












































Suntory SUNVILLEA Series


Floria 2012  - a superb gallery
Brassaia
HITS (House, Interior, Tropical, Succulent) Plants by Hatch - 2013-15 Early Preview Edition - 39 cultivars - (PDF ebook, 400+ pages leading to 1300 pages in 2017)


Takii Seeds of Japan has a wide array of ornamental clones in many series
Breynia
Briza
Brugmansia
and Datura

Brugmansia and Datura by Preissel (book, Amazon) - the leading monograph today

International Brugmansia and Datura Society - Namelist of Established Cultivars (plant society website, ICRA, cultivar register) - includes about 1900 cultivar names in Brugmansia
Brunnera

BRUN001 - Brunnera macrophylla 'Alexander's Great' (Plant Delights)
Buddleia/
Buddleja

Flora of China
Hatch's Cultivars of Woody Plants - 207 cultivars (New Ornamentals Society)



  • More interspecific crosses with added, rare species, making the less hardy look more hardy
  • More dwarf, low-mounded, and spreading  habits for small spaces, ie. Chips in new colors
  • More flower colors with pendulous inflorescences, these longer, and denser too
  • New, true, cleaner colors, real cherry reds, cobalt blue, oranges without muddles or bicolored looks
  • Triploids, no invasive seedlings
  • Rich, bright silver foliage for off-season interest combined with true cherry red, cobalt blue, etc. flowers



The Buddleja Garden (website)

Dennis Werner: Enjoying the steps and the goal (PDF article, The Plantsman)


'Miss Ruby' and 'Blue Chip'

    221

BUDD001 - INSPIRED™ WHITE
BUDD002 - Buddleia 'Painted Lady'
BUDD003 - Buddleia 'Asian Moon' (Monrovia)
BUDD004 - Buddleia davidii GROOVY GRAPE (Bailey Nurseries)
REGISTRATION PENDING - Buddleia 'Crown Jewels', 'Glass Slippers', 'Dark Dynasty', 'Jousting Jester', etc. (Walters Gardens)
BUDD005 - Buddleia 'Pink Micro Chip' (Proven Winners, Dr. Dennis Werner, North Carolina State University)
BUDD006 - Buddleia 'Pink Pagoda' - habit upright-spreading to mounded. Flowers pink, in narrowly conical panicles, "continuously flowering". Seedless. US Patent #23214 to Peter Moore, England as cross of B. weyeriana 'Sungold' x B. davidii 'Pink Delight'.
BUDD007 - Buddleia 'Miss Violet' - 4-5 ft. tall x wide, compact. Flowers dark purplish-violet. Bred by Dr. Dennis Werner, North Carolina State University. Springmeadownursery,com, accessed 4.30.2015.
BUDD008 - Buddleia davidii MERRY MAGIC® ORCHID 'SMBDPB' - 4-5 ft. tallx wide, more compact. Flower panicles very narrow but dfensely flowered, rich purple to violet, highly floriferous. Springmeadownursery.com, accessed 4.30.2015.
BUDD009 - Buddleia davidii GULLIVER - 1.75m tall. Flower spikes to 30cm long, wide, thick, fully flowered, corolla lilac with small orange eye. Cold hardy to -18 deg. C. Eur. PBR to East Malling Research, UK.
BUDD010 - Buddleia HUMDINGER™ 'Magenta Munchkin' - 28-36 in. tall, dwarf, compact, neat. Flower panicles 7-8 in. long, "fuchsia-red" (photos appear deep violet-fuchsia to violet-lavender), small orange eye, blooms before acfew weeks before MONARCH Series cultivars. Walters Gardens, intro. 2015.
BUDD011 - Buddleia HUMDINGER™ 'Magenta Munchkin' - 28-36 in. tall, dwarf, compact, neat. Flower panicles 7-8 in. long, "fuchsia-red" (photos appear deep violet-fuchsia to violet-lavender), small orange eye, blooms before acfew weeks before MONARCH Series cultivars. Walters Gardens, intro. 2015.
BUDD012 - Buddleia HUMDINGER™ 'Orchid Annie'
BUDD013 - Buddleia HUMDINGER™ 'Little Nugget'
BUDD014 - Buddleia HUMDINGER™ 'Lavender Cupcake'
BUDD015 - Buddleia HUMDINGER™ 'Little Angel'
Book II starts here:
BUDD016 - Buddleia 'Dreaming Lavender' -  8-20 in. tall x wider, low, dwarf, spreading to semi-pendulous. Flowers pale silvery-lavender to medium lavender. Sold under the BLOOMTASTIC!® trademark but since that spans more than one genus (Buddleia, Agapanthus, Skimmia), it is considered a marketing entity and not a taxonomic name, hence not registered here.

BUDD017 - Buddleia 'Purple Splendor'  -
8-20 in. tall x wider, low, dwarf, spreading to semi-pendulous. Flowers violet-purple to magenta-purple, eyezone white with gold ring. Leaves very silvery when new. Sold under the BLOOMTASTIC!® trademark but since that spans more than one genus, it is considered a marketing and not a taxonomic name, hence not registered here.
Buddleia BLAZE PINK™'Bosblink' - 1.5-1.9m tall x 13.-1.6m wide, flowers "first really hot pink Buddleia", medium pink but photos at Ball Ornamentals are clearly toned violet-pink, more magenta-rose to me, foliage silvery, very long bloom period. US Patent #25731

Buddleia TRU-BLUE™ 'Bostulu' - 1.6-1.9m tall x 1.2-1.6m wide, plants erect, strong stems, flower color true blue slightly lavender-blue, reblooms well in summer, very low seedset, foliage very silvery-gray. US Paten t#25708


---end of OROC Data Sharing

Buddleia by David Suart and RHS (book, Amazon)

Manual of Woody Landscape Plants by Dirr (book, Amazon) - very useful evaluations of cultivars, many quite new, from one of the top experts




'Summer Skies'
Buxus

Jan De Langhe
Boxwood: An Illustrated Encyclopedia by Batdorf (book, American Boxwood Society Shop)

The Boxwood Handbook by Batdorf (book, American Boxwood Society)

The ultimate boxwood DNA study, 700 accessions considered, 11.9 million base pairs examined - this US National Arboretum/USDA work is nothing short of transformative and massively enlightening. This SSR marker library will make future research more clear and valuable. This will lead to cultivar identification, relatedness of cultivar studies, and hopefully understand of blight resistance at the most basic levels. Diploid, triploid, mixoploid, and tetraploid cytology were documented.

Hatch's Cultivars of Woody Plants - 164 cultivars (PDF ebook, New Ornamentals Society) - a free CWP file with descriptions to new and important cultivars, numerous large (800-1200 pixel wide) images of habit and foliage documentating the Boyce/White Arboretum, USNA, JCRA, and other boxwood collections.


  • Dense, columnar to ovoid forms of B. harlandii and other rare species to make them more commercially viable
  • Refined combinations of habits and colors, weeping and very blue, rich gold columnar, etc.
  • Exploit the range of B. sempervirens leaf shapes but put them in more dwarf, columnar, and globose habit forms



BUXU001 - Buxus microphylla var. japonica SPRINTER™
BUXU002 - Buxus microphylla 'Eseles' (image, Government of Canada, PBR)
BUXU003 - Buxus sempervirens 'Skywalker' (Concept Plants)
BUXU004 – Buxus sempervirens ‘Jack Rudolph’ – 6 ft. X 4 ft. wide In many years, arborescent, conical, slightly cascading branches. Ritas Rare Plants, Tennessee from her father’s boxwood breeding program of 1940’s-1050’s. Camforest.com, accessed 4.23.2015
BUXU005 – Buxus sempervirens ‘Ruth Rudolph’ – 5 ft. tall x wide in many years, weeping. Rita’s Rare Plants, Tennessee, from her father’s boxwood breeding program. Camforest.com, accessed 4.23.2015
BUXU006 -
Buxus sempervirens 'Skywalker' (US# 22977) - From Mark Ellerbrook of Beaverton, Oregon, is the vigorous clone (growth up to 30 in. a year for up to 6 seasons) that is "very columnar...with a low amount of lateral branching", keeping green color much of the year, and resistant to common boxwood root diseases. Dimensions at six years are 1.8 meters x 30-38 cm.
BUXU007 - Buxus microphylla var,. koreana EMERALD KNOLL® 'RLH-B1' - 1.5-2.0 ft. tall x 3-4 ft. wide, low, mounding-spreading, patent says "outwardly spreading to decumbent, billowy and mounding", vigorous, freely branching, flexible lateral limbs resist cracking and splits, very fine-textured, compact, far less tufted and congested compared to 'Morris Dwarf' and less rigid than it.l Leaves rich emerald green all year, not bronzing in winter or cold weather.  US Patent #24443 on May 13, 2014 to Robert and Lisa Head, Seneca, South Carolina USA as sport of  'Kingsville' in 1991.
BUXU008 - Buxus microphylla 'Little Missy' - 16 in. tall x 30-40 in. wide, densely mounded to flat-subglobose, 2-3 in. growth a year. Leaves dark green, glossy, all year, not bronzing, blade smaller than species typical clones (1.6cm long x 1.0cm wide).. USDA 5 hardiness. US Plant Patent #24703 on July 29, 2014 to  Norman H. Cole III as chance seedling, assigned to Cp Delaware Inc.
BUX009 - Buxus sempervirens 'Thomas Jefferson' - 5 ft. tall x 2 ft. wide, or 6 ft. tall x 3 ft. wide (12 years), 12 ft. tall x 6 ft. wide (30 years), narrowly upright-ovoid to ellipsoidal to narrowlly pyramidal, not always columnar, 45 deg. branch angle (wider than 'Dee Runk'), 3-6 in. growth a year, resistant, strong limbs resist snow and ice damage. Leaves glossy, dark green all year, not bronzing. US Plant Patent #23869 on Sept. 3, 2013 to Thomas M. Patrick, Jr., chance seedling 1964, assigned to Saunders Bros. Inc., named for the US President as it was discovered in Charlottesville, Virginia, his home. An attempt to trademark this name or 'Mr. Jefferson' failed and is now marked as "CANCELLED - SECTION 8", which generally implies the name was not is use after 6 years or verified to be so.

--end of OROC Data Sharing




USDA- ARS - US National Arboretum - Drs. Pooler and Olsen - Developing Blight Resistant Boxwood Germplasm
Caladium
HITS (House, Interior, Tropical, Succulent) Plants by Hatch - 2013-15 Early Preview Edition (PDF ebook, 400+ pages leading to 1300 pages in 2017)


International Aroid Society - Cultivar Database Listing by Burch (website, plant society, ICRA cultivar register) - official cultivar register

A Survey of Caladium Cultivars Grown in Florida and Their Characteristics as Potted Plants by Wilfret et al.. (PDF article, Proc. Fl. State Hort. Soc.) - 78 cultivars

AFLP Provides Molecular Markers for the Identification of Caladium bicolor cultivars by Loh et. al (PDF article, Annals of Botany 84: 155-161 (1999))


'Bombshell'


'Florida Moonlight'
'Cranberry Star'
'Garden White'
'Dynamite Red'


CALA001 - Caladium ARTFUL Series (Proven Winners)
CALA002 - Caladium 'Tie-Dyed Tree Frog'.
CALA003 - Caladium 'Bombshell' - leaves intense red (45-50%) of cen ter, dark bluish-green margins, transitional zones finely spotted pink (5%), secondary veins red to 70% of their length. Classiccaladiums.com, accessed 4.25.2015, Bob Hartman hybrid
CALA004 - Caladium 'Lemon Blush' - leaves pale chartreuse to creamy-green, pinkish-red center to 65% surface, 3-5 secondary veins this same pinkish-red to most of their length.  Classiccaladiums.com, accessed 4.25.2015,
CALA005 - Caladium 'Burning Heart' - leaves dusky dark red, bronze overlay, subtle pinker to orange spots, very unique.. Classiccaladiums.com, accessed 4.25.2015.
CALA006 - Caladium 'White Pearl'' - 12-18 in. tall. Leaves lance-type, 90-95% white, dark jade green margin. Classiccaladiums.com, accessed 4.25.2015. Bob Hartman hybrid.
CALA007 - Caladium 'Rio Red' - leaves 85-90% red center, medium olive-green margin, central zone also faintly spotted in the same green tones and some paler shades too, most distinct for intense undulations of the blade and a very sharp apex while not being a lance-type cultivar.. Classiccaladiums.com, accessed 4.25.2015, Bob Hartman hybrid, intro 2015.
CALA008 - Caladium 'Tapestry' - Caladiumsonline.com, accessed 4.30.2015, their exclusive 2014.
CALA009 - Caladium 'Frog in a Blender' - Caladiumsonline.com, accessed 4.30.2015, their exclusive 2014.
CALA010 - Caladium 'Moonlight' - Caladiumsonline.com, accessed 4.30.2015, their exclusive 2014.
CALA011 - Caladium 'Cherry Tart' - Caladiumsonline.com, accessed 4.30.2015, their exclusive 2014.
CALA012 - Caladium 'Puppy Love' - US Plant Patent #25424
CALA013 - Caladium 'Hearts Delight - US Plant Patent #23992
CALA014 - Caladium 'Celebration' - US Plant Patent #23993
--end of OROC Data Sharing





Caladium 'Tie-Dyed Tree Frog'. A similar offering from another firm in less contrasting green shades is named 'Frogs in a Blender' and while fans of PETA and frogs may be offended, that too is a very pretty thing in frog green shades splattered in blood red. Click image to enlarge.

Caladium 'Raspberry Moon' immediately stood out as distinct AND valuable - some new clones are one or the other - this is both. Yes, it is "washed out" but the effect is wonderful; especially in a larger plant than this one. The greenish-white to pale lime base color is overlaid and literally washed in white and pale pinkish-red tones that sometimes darker to a true razzleberry tone. The contrastrs are soft, not harsh like most in this genus, and it's a real mellow fellow that works with alot of other plants that other Caladium might dominate or clash. Click image...this ain't no tiny picture blog with fuzzy junk!
Calathea
AFLP Analysis of Genetic Relationships Among Calathea Species and Cultivars by Chao, Devanand, and Chen (PDF article, University of California-Riverside,Plant Science)

49 cultivars



Calceolaria
CALC001 - Calceolaria CALYNOPSIS Series (Selecta)
Calibrachoa
Penn State Trial Gardens Report (university website, trial gardens, cultivar evaluation) - 680 cultivars - a splendid and very large study with images

Trail Gardens Report (Raker) - a very useful set of images and detailed ratings - select the genus from the pulldown menu
Callicarpa




CALL001 - Callicarpa japonica WHITE SPRITZER™ is one of the best variegated clones in the genus and the violet-pink new tips make it quite the glorious, tricolored creation. It has great vigor unlike a speckled sport of this same species I found in the 80's which never proved market worthy. This is truly one of the finest variegated, deciduous shrubs of any genus and makes a nicely fine-textured, compact pyramidal piece; never wild nor too crazy if given enough light. Click image to enlarge. Above image not part of OROC Data Sharing.
CALL002 - Callicarpa kochiana 'Yamaguchi Variegated' - leaves large, 4-8 inches long, 1.5-2.0 inches wide, elliptic, boldly sectoredly and marked in clean white to cream, 25-45% surface in strong plants,, other sectors, spots, and markings in lime or a paler green than the dark green base color, margins very finel serrjulate with 20-32 teeth per side Kniw from a specimen at the JC Raulstron Arboretum, also offered by nurcar.com, accessed April 2013.
Callicarpa PEARL GLAM™ 'NCCX2' (C. dichotoma x C. kwangtungensis) - habit erect, neat (from second parent), leaves richly tinged purple (also from C.k.), fruit rich violet-pink, abundant, early (mostly from first parent). Or: Dr. Tom Ranney, NC State University in cooperation with Spring Meadow Nursery. In: www.springmeadownursery.com  

--end of OROC Data Sharing


  • More interspecific crosses, especially with C. kwangtunensis and adding up to 150 other species crossed to hardy species
  • Better, cleaner, uniform pink and pale lavender fruit colors (white x purple crosses), possibly light oranges given the DNA available
  • More reliable fall colors in richer gold and strong red blends
  • Lower, more manageable habits for smaller gardens but not removing the species' charming horizontal and arching architecture
  • True red or at least rosy-red fruit tones
  • Breed the arching low habit forms into true weepers and then with compactness for small gardens and planters, keeping them elegant
Callistemon
List of Registered Cultivars Derived from Australian Native Flora by Australian Cultivar Registration Authority (ICRA, cultivar register, ACRA, Australian National Botanic Gardens) - many of the new cultivbars described in rich retail


C. viminalis BETTER JOHN™
Your computer, tablet, phone, or book reader can have the latest cultivar encyclopedia for each genus in handy PDF form - the most complete cultivar references for more than 103 ornamental, landscape genera. CULTIVAR.ORG is a product of more than 35 years of work by leading horticultural taxonomist Larry Hatch and the hundreds of experts in the New Ornamentals Society and our experts partners around the world. We exceed your familiar plant manuals, horticultural society "complete" guides, and most websites by 3-20 times more cultivars and with much more specific, detailed data. For example, 159 Aucuba cultivars, 191 Astilbe, 274 Aquilegia, 109 Ajuga, 1032 Acer, 59 Abelia, 175 Aglaonema, and 103 Aesculus. For just $119.00, you have access to these huge, original datafiles up until 2018.
Calluna
(including
Erica and
Daboecia)

Heaths and Heathers by Underhill (book, Amazon) - a classic reference from 1971, often very affordable as a used copy

Heaths and Heathers: The Growers Encyclopedia by Underhill (book, Amazon) - newer 2000 edition of the 1971.

Dwarf Heaths and Heathers by Lortz (Kindle ebook, Amazon) - $2.99 a copy time we checked. You do not need a Kingle device to view these ebooks since most any computer will handle Kindle format with the right download

Erica -

The Heather Society (plant society website) - numerous resources including extensive cultivar checklists to several genera. Their nursery listing is here

Heath and Heathers Nursery

Northeast Heather Society


Calluna
Calochortus
Telos Rare Bulbs (nursery website) - a very large offering of strains, color variations, etc. which are best regarded as cultivars.
Calocedrus RHS Conifer Cultrivar Registers (Royal Horticultural Society, ICRA)
Caltha
CALT001 - Caltha palustris 'Girl Eyes' - 30cm tall, becoming 40cm in flower, more compact, neat than species typical. Flower tepals yellow. Selected by Jan Spruyt, vasteplant.be, accessed 5.16.2015, under their JS® trademark .
Calycanthus

CALY001 - Calycanthus floridus 'Van der Geiseen's Choice' - Flowers of exceptional fragrance. Selected by Maarten van der of Geissen of Semmes, Alabama USA, Nurcar.com, accessed April 2013.
CALY002 - Calycanthus floridus 'Coker Cottage' - plants 10 ft. tall x wide, vigorous, strong, durable in USDA 7b (Chapel Hill, North Carolina). Flowers red, small but very numerous. Leaves a good yellow in fall. Originated from a notable tree at the Coker Arboretum, University of North Carolina, Chapel Hill, North Carolina. That same old arboretum on campus also holds the original tree of Liquidambar styraciflua 'Rotundiloba', a popular and unique tree that is  fruitless with curiously rounded lobes, prized over the world.
--end of OROC Data Sharing.






http://hortsci.ashspublications.org/content/36/4/765.full.pdf

'Venus' (SNA Conference)


Camellia

Flora of China




Web Camellia Register by International Camellia Society (plant society website, ICRA, cultivar register) - a very powerful, useful reference.

Camellia Forest (nursery website, gallery) - imagine a nursery started by the leading taxonomist for the genus (Dr. Cliff Parks) and his hobby is to breed useful garden hybrids from his vast collection and new species introduced from Asia. This is the case here, the supreme work of a worldclass taxonomist who understands the case and makes our gardens better at the same time. A cool YouTube vid from UNC-TV Public Television about them is available by click the icon below:



Camellia japonica 'Geoff Hamilton' (variegated leaf)
Camellia japonica SPLENDOR (Concept Plants) - a lovely cream-edged leaf. Youtube Vid.

Historic Camellia Catalogs (Atlantic Cocast Camellia Society, nursery catalog, archives)


1. Camellia Forest
2. Camellia Glen
3. Camellia Grove (Loder Nurseries)
4. Dancraft Nurseries
5. Glenn Read Camellia Nursery
6. Greens Nurseries
7. Loch Laurel Nursery
8. Nuccios Nurseries
9. Thirkettle Nurseries

Practical Camellia Culture by Robert Halliday 1880 (Google ebook, monograph)
Campanula Dwarf Campanulas by Nicholls (book, Amazon)

Campanulas: A Gardener's Guide by Lewis and Lynch (book, Amazon)

The Garden of Bellflowers in North America by Bailey (book, Amazon)

RHS/AHS Encyclopedia of Perennials by Rice (book, Amazon)

Hatch's Perennials 1.0-3.0 - 342 cultivars (PDF ebook, New Ornamentals Society)

Herbaceous Perennial Plants by Allan Armitage - a very popular treatise with lots of cultivar notes, identification of species information, and a broad general spectrum of information.


CAMP001 - Campanula (glomerata?) GENTI BLUE® (Wayside Gardens)
Campsis

Hatch's Cultivars of Woody Plants - 38 cultivars (New Ornamentals Society)



CAMPS001- Campsis grandiflora 'Morning Calm', JC Raulston's amazing selection that remains superior to most C. radicans and hybrid selections for corolla coloration, vigor, and a huge 1.5 to 2.0 inch wide trumpet face. If this looks like an impossible tropical flowering vine - it should not - for it does well in USDA 6-10. The huge trumpet is melon at times, in other portions of the day a richer orange, orange juice to Nasturtium, other times a somber, dark vermillion-orange, a delicately veined trroat of gold and darker shades, and very often a blend of all these curious, prismatic pigmentations; showing reflective crystals in the tissue and odd tones from the very opening of each flower. Images above and below not part of OROC Data Sharing.

CAMPS002- Campsis x tagliabuana ORANGEADE® 'Tracamp' from Sapho.fr has the first boldly bicolored, chimera-style flowers in this genus, contrasting rosy-gold with rich magenta pink at every toss of a shadow and sunbeam. Frankly, I thought we'd see gold veined red flowers or red-veined gold flowers before a chimeral bicolor beauty like this one.
Click image to enlarge.

CAMPS003 - Campsis radicans ATOMIC RED™

CAMPS004 - Campsis 'Chastity' (Dr. Tom Ranney, North Carolina State University, triploid)

CAMPS005 - Campsis radicans 'PRN Redbird' (Pleasant Run Nursery, their own selection)

CAMPS006 - Campsis SUMMER JAZZ FIRE (Plantarium.nl)
Capsicum
Chile Pepper Institute of New Mexico State University (university website, cultivar breeding, cultivar evaluation) - from the leading breeders of both edible, edible-ornamental, and purely ornamental peppers. Their NuMex Series cultivars are described here. Two of their recent ornamentals are 'NuMex Centennial' and 'NuMex Twlight'. They also have a shop for pepper books and seed.


'Tangerine Dream'
'Black Pearl'
LIL PUMPKIN™ and PEPPER JACK™
MIDNIGHT CREEPER™ and SOLAR ECLIPSE™
CONGA™, CUBANA, KARNVEVAL, TANGO, MAMBO, UCHU, SALSA, and FAVORIT Series (Takii Seeds) - a very large range


Capsicum annuum UCHU™ is one of the better variegated strains though we love the purple, lavender, and white of  'Purple Flash' too. This has very large, clean white leaves and big pristine white chimeral patches which make it visible from 30 feet or more. It is surprisingly vigorous for a plant with this much white tissue. This 500 pixel wide image would be large for some sites but you should always click our images for 1000-1250 pixel wide clarity, filling a whole screen of a most devices.
Cardamine

Cardamine douglassii 'Southern Lady' available at Plantdelights.com
Carex
Hatch's Perennials 1.0-3.0 - (PDF, New Ornamentals Society)




CARE001 - Carex  'Mad for Mocha' (Hort Couture) - 8-10 in. tall. Leaves tan to brown shades.
CARE002 - Carex siderostica 'Snow Cap' (Wayside Gardens). Leaves much as 'Banana Boat' but central zone (80-95% surface) is white to cream, slightly striped but often a uniform chimera, much whiter tones than 'Variegata'. Walters Gardens, intro. 2013.
CARE003 - Carex laxiculmis BUNNY BLUE™ 'Hobb' (Plant Delights) - 8-12 in. tall x 12-16 in. wide, neat, clumping. Leaves rich silvery-blue.
-
CARE004 - Carex CENSATION™ 'Feather Falls' -  40cm tall, cascading mound of long, linear leaves, each leaf broadly margined in white to cream. Inflorescence short, cream to tan, feathery, semi-showy.  CENSATION is a trademark name used to market multiple genera and is therefore not registered by us nor should it be considered a nomenclatural taxon. It is provided here for context and clarity only.

--end of OROC Data Sharing
Canna NOS Canna Checklist Project in NODgeo (PDF file, New Ornamentals Society) - 400+ cultivars - includes history, descriptions, and many historical scans. Subscribe to NODgeo to receive this reference.


Gardener's Guide to Growing Canna by Cooke (book, Amazon)

http://www.sciencedirect.com/science/article/pii/S030442381300068X - RFLP DNA work on 42 cultivars.


Canna Cannova Series (Hort Couture)

The Canna and How to Grow It by Ravenscroft (PDF ebook, Google Books) - a 1901 classic and not widely known. Lots of old history on cultivars

RHS Canna Bulletin (PDF, plant society, cultivar trials, evaluation) - valuable report of 152 cultivars on trial with their usual attention to precise delimitation and comparison, leadinjg to 22 AGM.

Growth and Flowering Characteristics of Canna Cultivars in South Florida by Brsocat et al. (PDF article, Proc. Fl. State Hort. Soc.. 95: 285-288 (1982)) - 52 cultivars

Canna Blog by Karchesky Canna (blog website, nursery website) - a nice place for new and rare cultivar images and data, especially the modern Alice Harris hybrids.

Hart Canna (nursery website, reference)

Growing Canna Lilies in Your Garden by Carey and Avent (website article, nursery catalog)

The Canna and How to Grow It by Ravenscroft (PDF ebook, Google Books) - a 1901 classic and not widely known. Lots of old history on cultivars

RHS Canna Bulletin (PDF, plant society, cultivar trials, evaluation) - valuable report of 152 cultivars on trial with their usual attention to precise delimitation and comparison, leadinjg to 22 AGM.

Growth and Flowering Characteristics of Canna Cultivars in South Florida by Brsocat et al. (PDF article, Proc. Fl. State Hort. Soc.. 95: 285-288 (1982)) - 52 cultivars

Canna Blog by Karchesky Canna (blog website, nursery website) - a nice place for new and rare cultivar images and data, especially the modern Alice Harris hybrids.


Canna Trials at Wisley 1908 (RHS, historical document) - an old report but with 220 cultivars on trial, of which 198 are described this is a very useful document for Canna scholars and collectors.


CANN001 - Canna 'Fire Dragon' (Plant Haven)
CANN002 - Canna 'Chocolate Sunrise' (HortCoutre)
Canna 'Chocolate Sunrise' (HortCoutre)
Caragana
Carissa
Carpentaria
Carpinus

Jan De Langhe


CARP001 - Carpinus betulus 'Stegemann's Primus' (Minier Nurseries) - conical, vigorous, reguarly branched. Selected by J. Stegemann, Eur. CPVO to him 2005.
CARP002 - Carpinus betulus ROCKHAMPTON RED 'Lochglow' (Planteria.eu) - unfirom crown. Leaves with reliably showy, colorful orangish-red to red call colors. Eur. CPVO to Geoff Locke 2014. Planteria.eu winner. See http://www.planteria.eu/news/241/rockhampton-red-wins-for-batouwe
CARP005 - Carpinus caroliniana BALL O’FIRE™ 'J.N. Globe' - 15-20 ft. tall x wide, compact, globose. Leaves reliably showy, orange to red in fall, some yellow for contrast Selected from superior tree in wild, Waukesha, Wisconsin, USA by johnsonnursery.com. 
CARP006 - Carpinus caroliniana FIRESPIRE™ 'J.N. Upright' - 20 ft. tall x 10 ft. wide, distinct erect. Leaves boldly coral-red to orangish-red in fall, interior canopy leaves often a dark burgundy. Johnsonnursery.com, accessed 5.2.2015.
CARP007 - Carpinus caroliniana NATIVE FLAME® 'JFS-KW6' - 30 ft. tall x 20 ft. wide, upright, ovoid. Leaves dark green in summer, high quality texture, reliably orange to red shades, very showy in fall. jfschmidt.com, accessed 5.2.2015
CARP008 - Carpinus betulus ORANGE RETZ® - leaves very bright orange in fall. Eur CPVO to Jean Blondeau 2014.
--end of OROC Data Sharing




CARP003 - Carpinus japonica 'Silver Lace' is a stunning entity among all cut-leaved trees, a fine recent introduction, quite a feathery to almost pin-like or ciliate sort of margin, bearing a pale silvery-green hue in the sun. The spiky, narrow blades carry a special, odd rugosity, the sort normally found only in herbaceous plants, where the long, convex bubble between the secondary veins turns into the thin, sharp tooth, making the lateral veins sunken, reflecting yet more white or pale green light. Anyone who knows, collects, and studies our laciniate trees and shrubs will know this is a very unique, useful release, cuter than cute, and prettier than your best girl in silver lace. Buchholz Nursery has it for one. Click image to enlarge.

CARP004 - Carpinus caroliniana 'Stowe Cascade', a semi-weeping, elegantly drooping at least variant on that other species that rarely gets selected for cultivars. This beauty is shown at the JC Raulston Arboretum and originated about 4 hours to the southwest at the Daniel Stowe Botanic Garden in Charlotte, NC. Click image is you will. Above images not pafrt of OROC Data Sharing.


Survival, Growth, and Fertility of Carpinus Hybrids by Santamour (HortScience article) - a free PDF from one of the 20th century's most accomplished tree breeders.
Carya
Caryopteris


RHS Caryopteris Bulletin (PDF, plant society, cultivar trials, evaluation)




Caryopteris BEYOND MIDNIGHT™. Image courtesy of and owned by www.provenwinners.com. Please click image to enlarge.
Castanea -
Ornamental


Jan De Langhe
Castanopsis
Catalpa

Cultivar.org original key by Larry Hatch



USDA - ARS - US National Arboretum - Drs. Pooler and Olsen - Evaluation and Genetic Improvement of Woody Ornamental Landscape Plants for Disease and Pest Tolerance, Non-invasiveness, and Ornamental Traits
CATA001 - Catalpa speciosa HEARTLAND® 'Hiawatha 2'  (J.F. Schmidt) - 50 ft. tall x 25 ft. wide, "upright narrow oval", more narrow and more uniformly branched than species typical.  Leave darker green than species typical. jfschmidt.com, introduced 2015, accessed 5.31.2015.

Catalpa bungei 'Menghuan' ("Colorful Manchurian Catalpa") - leaves margined rose-red at first, later becoming edged yellow and finely white in irregular width, margins "very wavy", adding to the interest, the chimera appearing to be from 15-55% of the leaf surface according to the US Patent application drawings, one of which is shown above. Or: mutation found on May 5, 2011 on road side in Long'an District, Anyang City, Henan Province, China. It was grafted on May 10, 2011 onto species stock. US Patent applied for on March 16, 2016 by Huaming Wang, Suiping, China. It is the opinion of our attorney and many others that US Patent application data is entirely in the public domain unless the applicant makes an order to copyright the known drawings, symbols, or images. Lacking such evidence to the contrasy, we freely publish this image here, however asking it be attributed to the originator in a proper scientific manner. 
Catharanthus
'Taoyuan No. 1 Rose Girl' (double-flowered)



Catharanthus roseus 'Jams N Jellies' (Park Seed, 2012 AAS Winner)
Ceanothus Ceanothus by Fross and Wilken  (book, Amazon) - the modern standard monograph, horto-botanical in balance, a very notable, and rigorously formed work.




Taxonomic Affinities of Arctostaphylos and Ceanothus Cultivars by Keeley and Keeley (PDF article, taxonomy)

Evaluation of Growth, Flowering, and Cold Hardiness of Ceanothus in Western Oregon by Bell (PDF article, HortTechnology)

Ceanothus Introductions of the Saratoga Horticultural Foundation (PDF article, Universiyt of California at Davis) - a primary document (we think) on many of the important, early intros.

Las Pilitas Nursery (nursery website)
Cedrus

Original cultivar.org key by Larry Hatch


RHS Encyclopedia of Conifers (book) - numerous cultivars and stunning photographs

RHS Conifer Cultrivar Registers (Royal Horticultural Society, ICRA)

Cedrus atlantica  'Blue Fountain' - originators place the species C. atlantica under C. libani.
Celastrus
Celastrus scandens AUTUMN REVOLUTION™


Celosia
CASTLE™ and ARMOR Series (Takii Seeds)

Trail Gardens Report (Raker) - a very useful set of images and detailed ratings - select the genus from the pulldown menu

Celtis

Cultivar.org original key by Larry Hatch
Centaurea
CENT001 - Centaurea montana 'Lavender Mist' - 16-18 in. tall, shorter, "better branching". Flower with pale lavender disk, inner rays, outer long rays near white, longer bloom period than species, up to 50% more flowers. Darwinperennials.com, accessed 4.11.2015.
Cephalanthus
Cephalotaxus



C. h. YEWTOPIA® (Southern Living Plants)

CEPH001 - Cephalotaxus harringtonia 'Gold Dragon' (Hawksridge Farms) - 2-3- ft. tall x 4-5 ft. wide. Leaves golden-yellow in new growth.
-end of OROC Data Sharing

RHS Conifer Cultrivar Registers (Royal Horticultural Society, ICRA)
Cercidiphyllum

CERCID001 - Cercidiphyllum japonicum CLAIM JUMPER™ (Broken Arrow Nursery) - new leaves rose pink, becoming yellow
CERCID002 -
Cercidiphyllum japonicum HANNA'S HEART® 'Biringer' - Habit erect, compact. Leaves darker green, rich yellow in fall, leaves held longer due to increased cold resistance. Cold hardiness greater. www.biringernursery.com, accessed 4.19.2015
--end of ORC Data Sharing

Cercis The Redbuds by Hatch - 91 taxa, most cultivars - part of Hatch's Cultivars of Woody Plants (PDF ebook, TCR Press)

Manual of Woody Landscape Plants by Dirr (book, Amazon) - very useful evaluations of cultivars, many quite new, from one of the top experts


CERC001 -C. canadensis 'Pink Pom Poms' (Dr. Dennis Werner, North Carolina State University, new cultivar, double flowers)
CERC002 -  C. canadensis 'Vanilla Twist'- weeping with white flowers, a new combination.
CERC003 - Cercis canadensis RED FORCE® 'Minrouge3' (Minier) - leaves bright purplish-red, not purple as 'Forest Pansy'
CERC005  Cercis canadensis LUCIOUS LAVENDER™
CERC006  Cercis canadensis RADIANT LIPSTICK™

Cercis canadensis THE RISING SUN® in the much expanded new section of the Raulston Arboretum, a clone with a virtual sunrise (or sunset) of yellow, pink, orange, salmon, lime, coral, and chartreuse tones. Click image to enlarge.

CERC004 Cercis canadensis CAROLINA SWEETHEART™ 'NCCC1'. This outstanding cross of purple and variegated leaf genetics in redbud by Dr. Tom Ranney produced spectacular glowing pink hearts of new foliage. It is amongst the most colorful and pretty variegated trees on the planet, rivaling Japanese maples and sycamore-maple cultivars for flash and a designer aura of new tips. Image courtesy of and copyright owned by Tom Ranney. Click image to be thrilled. Images are not part of OROC Data Sharing.

CERC007 - Cercis canadensis 'Alley Cat' - leaves heavily white-streaked and white-spotted, chimera about 35-50% blade surface, new growth slightly tinged copper to pink, more sun scorach resistant in warm climates, variegation very stable. Selected by Harold Neubaruer, Hidden Hollow Nursery, hiddenhollownursery.com, accessed April 2014, as a superior clone to 'Floating Clouds' and 'Silver Cloud' for sun tolerance and refined summer coloration/.
--end of OROC Data Sharing


  • More new combinatons of habit, corolla color, and leaf color (ie. weeping gold, columnar purple, orange leaf white flower). Werner has given us several of these (weeping purple, weeping variegated) and also weeping with white flowers.
  • A double, white-flowered C. can. 
  • Add leaf gloss, probably from C.c. subsp. texensis (subsp. mexicana)  to other leaf colors. 
  • Take the plum purple flowers to new places like real violet and near blue. 
  • Blending of leaf color as gold/orange x purple crosses, varieged x purple as in CAROLINA SWEETHEART is one nice example
  • Increasing importance of columnar and less spreading clones - the species are often too wide for many landscapes
  • Lack of fruit set or early drop of messy - there are amazing hybrids but their fruit load is messy and ugly
  • More use of Asian species (C. chingii, C. gigantea, and C. glabra) in crosses. We can make flowering earlier and leaves larger 
  • A good stable, marginal variegated clone - the mottles stuff are okay but  a but flaky 
  • Floriferous, dwarf, groundcover cultivars - the weepers will crawl and look mightly cute going  low but they get too large and out of scale for small yards


Breeding Efforts in Cercis at North Carolina State University by Werner (website article, N.C. State Unive
rsity)

Dennis Werner: Enjoying the steps and the goal (PDF article, The Plantsman)


USDA - ARS - US National Arboretum - Drs. Pooler and Olsen - Evaluation and Genetic Improvement of Woody Ornamental Landscape Plants for Disease and Pest Tolerance, Non-invasiveness, and Ornamental Traits



'Ruby Falls' and 'Merlot'
'Ace of Hearts' and 'Little Woody'
Chaenomeles Weber. C. 1963. Cultivars in the Genus Chaenomeles. Arnoldia 23(3) - the most complete cultivar checklist ever in this genus. Our file below supplements it as does does Dirr's Manual. So many of these old cultivars are sure to be lost, so there has been little incentive to revise this document.

New upload 10.26.2014

CHAE001 - DOUBLE TAKE™ Series (Proven Winners)
CHAE002 - Chaenomeles speciosa RED PREMIER™ 'Greredpre' - 3-4 ft. tall x 3 ft. wide, compact. Flowers very dark red., double but less so than DOUBLE TAKE Series, cupped, stamens gold and showy. Greenleaf nursery.com, accessed 5.4.2015
Chamaecyparis


C. Schulz


There are two methods of purchasing Cultivar.org plant files
Purchase all plant groups (7.1 gigabytes) for $119,  a savings of over 60% over individual ebook purchases and access from this menu. If you already subscribe click the links below for instant PDF downloads. Individual PDF ebook file purchase as standalone files. These books use DRM by Google so be accessed from this menu.
C. obtusa - 271 cultivars
C. pisifera -

Click logo above for this genus order page with a free sample.

RHS Encyclopedia of Conifers (book) - numerous cultivars and stunning photographs

RHS Conifer Cultrivar Registers (Royal Horticultural Society, ICRA)

The Conifer Treasury 5.0 by Mesterhazy (website, cultivar checklist) - very large, impressive checklist


CHAM001 - Chamaecyparis obtusa 'Cooper's Gem' (RHS, Nomenclatural Standard, JSTOR)

CHAM002 - Chamaecyparis obtusa 'Sunny Swirl' (Iseli Nursery)

CHAM003 - Chamaecyparis obtusa NIGHT LIGHT™  (Star Roses) - I really had to get a grip when the patent application compared this globose, golden, plumose gem to "Grippsii" instead of the obvious 'Elmwood Gold', sport or seedling too of 'Crippsii'. I'm glad the US patent inspectors don't do road tests of cars because we'd be having a Lambo Aventador racing a Ford Fusion. They seem to have no clue what are legit comparisons (originators also spinning the match up to their end when the clone may or may not be unique at all) and miss the one, two, or three obvious benchmarks already in gardens and the trade too. The big Cripp's false-cypress is pretty and durable from USDA 5 to 8, handling Raleigh, NC with as much ease as Rochester NY. If this is half as good as the tales from the Cripps in gardens, it should be splendid indeed.


CHAM004 - This Chamaecyparis thyoides BLUE ROCK® 'Versent' is as good as the dwarf Chamies of the Squarrosa Group and probably more cold hardy and less browning with age. We will see but this baby looks like a winner and glows with such lovely sapphire tones. This image is not part of OROC Data Sharing.

CHAM005 - Chamaecyparis obtusa 'Butter Ball' - habit dwarf, subglobose, fern-like in texture but more elegant than similar older clones. Leaves lemon-yellow, inner foliage lime to dark green, given some contrast. Iselinursery.com, accessed October 2013.

CHAM006 - Chamaecyparis pisifera (Filifera Group) 'Angel Hair' - habit dwarf, filfiorm texture as the Filifera Group, slower and thinner than classic clones of the group. Found in New York by Mike and Ken Yaeger, Hickory Hollow Nursery. Iselinursery.com, accessed October 2013.
-end of OROC Data Sharing
 
Chamaedaphne

CHAMAED001 - 'Dew Drop' (Rare Find Nursery) - 1.5 ft. tall x 3 ft. wide at first, potentially 2-3 ft. tall x wide, very dense.
Chamaerops


CHAMAER001 - Chamaerops humilis 'Vulcano' (Palmcentre.co.uk)
Chelone
CHEL001 - Chelone lyonii TINY TORTUGA 'Armtipp02' - 11-15 in tall x 10 in. wide, very compact, slow. Leaves very dark green. Flower corolla rich medium violet-pink, labia darker at apex. Bred by Gerard Lentjes from 'Hot Lips'
Chilopsis
Chimonanthus
Chionanthus


CHIO001 - Chionanthus virginicus 'Black Stem' (Buchholz)

CHIO002 - Chionanthus retusus 'Arnold's Pride' (11/5)
ht: 30 ft. tall x 30 ft. wide (original tree)
fq: very floriferous
frq: self-fertile
or: Arnold Arboretum from the famous, very notable example planted 1901, raised from seed
or: collected at Emperor's Imperial Bot. Gard.

CHIO003 - Chionanthus retusus 'China Snow' (11/5)
ht: 10-18 ft. tall and wide, 10 x 10 ft. as young trees
lc: glossy dark green
fq: floriferous
or: Don Shadow selected from notable tree in old Sanford Arboretum, Knoxville, TN USA.
or: Nurseries Caroliniana (online catalog, accessed 11.24.2012) says it is from an old tree
or: at the Arnold Arboretum.

CHIO004 - Chionanthus retusus 'Ivory Tower' (3/7)
ht: 15 ft. tall x 3 ft. wide
ha: strictly upright, columnar
ll: 4.0 in.
lc: very glossy green
infl: 2-4 in. panciles
so: www.hawksridgefarms.com (online catalog 2007)

CHIO005 - Chionanthus retusus 'Yadkin Creeper' (11/8)
or: presumed to be www.yadkinvalleynursery.com, not listed on website on 11.9.2008
lsp: Raulston Arb #030704 rec. 4/18/2003, 47 " tall in 2005

CHIO006 - Chionanthus virginicus 'Emerald Knight' (5/4)
lc: darker green by one report
so: www.highlandcreeknursery.com (online catalog 2003)

CHIO007 - Chionanthus virginicus 'Groenendaal' (12/6)
ns, id: a clone listed in Europe, a seedling from Groenendaal Arboretum

CHIO008 - Chionanthus virginicus 'Floyd'
ha: denser, more upright than species typical
ft: 99% or more male flowers only
frq: virtually no fruit set, only the occasional one has been observed on larger trees
or: Sonnemann Experimental Station Garden, Vandalia IL USA c. 1945 as chance seedling
in, ns: named and introduced by Dr. J.C. McDaniel in honor of Floyd Sonnemann 1970. US trade about 1972-3
li: McDaniel, J.C. 1969. Proc. Int. Plant Prop. Soc. 19: 377-378.

CHIO009 - Chionanthus virginicus 'Pat's Variegated' (5/4)
lc: irregularly margined, mottled and sectored light yellow, some
lc: leaves all yellow or all green, very colorful to date
fq: seems to flower well for a variegate.
lsp: Juniper Level Botanic Garden, Raleigh, NC, first observed by me in May 2004.

Chionanthus virginicus [pink flowered]
fc: light pink
or: Dirr in his 1998 Manual relates that "a lady approached me and
or: mentioned she knew of red- and pink-flowered forms. Needless
or: to relate, I had abnormal heart paplitations. Arrangements were made
or: to propagate the forms...to this day I await the first scion."
or: Nicholson's Arnoldia article 50(4): 24-31 (1990) mentions a pink form found
or: in Virginia and perhaps other states.

CHIO010 - Chionanthus virginicus 'Spring Fleecing' (11/6)
ht: 12-20 ft. tall
ha: small tree, "superior form"
lc: glossy dark green
sex: male
fq: more floriferous
ff: nicely scented
so: www.nicholsgardens.com (online catalog 2006)
--end of OROC Data Sharing
'
x Chitalpa
Olsen, R., T.Ranney, eta. al. 2006. Reproductive behavior of induced allotetraploid xChitalpa. J. Amer. Soc. Hort. Sci. 131(6): 716-724. (valuable paper in understanding the two genera involved and surely a key to non-invasive triploids of them for future landscape use)
Chlorophytum
Chlorophytum laxum ZEBRINA®
Choisya
Chrysanthemum x maximum or C. x superbum = Leucanthemum
Chrysogonum
Hatch's Perennials 1.0-3.0 (PDF, New

Cimicifuga

Cinnamomum
Cistus
Hatch's Cultivars of Woody Plants - (New Ornamentals Society)

Citrus -
Hardy,
Ornamental

Cladrastis
CLAD011 Cladrastis kentukea 'White Rain' (Wayside Garden) - a new weeping clone - by the way there is no "c" in kentukea. It's a Latin thing and folks should know better.
--end of OROC Data Sharing
Clematis -
Herbaceous



CLEM001 - Clematis recta 'Midnight Masquerade' (Edelweiss Perennials), their own introduction
CLEM002 - Clematis SERIOUS BLACK™ (Walters Gardens)
--end of OROC Data Sharing


When I shot this lovely variegated Clematis stans 'Festival' at Juniper Level Botanic Garden @ www.plantdelights.com, I was stunned for it's beauty against the massive, frosty blue leaf Agave americana. Tony Avent and staff use big Agaves with skill to shelter and blend colors off of his other rare treasures. This juxiposition was ideal and I always get the Nikon camera jitters when facing a moment of capture or not - always checking my back screen thumbnails and shooting 10 extra pictures from different angles to be sure I nailed it. A Clemie not needing flowers? Say....yes! Yes again! The refreshing chartreuse to yellow chimera is vast and really it's the dark green sectors and spots that intrude upon it instead the other way-round. In hot summer North Carolina sun, a big blue buddie to protect you is priceless. Click to enlarge.
Clematis -
Woody Vines
Clematis for Small Spaces by Evison (book, Amazon)

Clematis: An Illustrated Guide to Varieties by Mikolajski (book, Amazon)

Clematis: A Gardener's Guide to the Genus by Grey-Wilson (book, Amazon)

An Illustrated Encyclopedia of Clematis by Toomey and Leeds (book, Amazon)

RHS Register and Supplements (ICRA, cultivar register) - supplements in PDF are free, the main register is sold

Clematis on the Web (website, database) - a list only but a very fine one, covering 3500 taxa.

Clematis International - Links Page


Clerodendron
Clethra 31 cultivars

Manual of Woody Landscape Plants by Dirr (book, Amazon) - very useful evaluations of cultivars, many quite new, from one of the top experts

Summersweet, Splendor, Too by Schmidt and Anisko (American Nursery, article, PDF) - an evaluation of clones on trial at Longwood Gardens

Sweet Pepperbush: A Summer Sensation by Dirr (PDF article, Arnoldia, Harvard University)

Interspecific Hybridization in Clethra by Reed, Joung, and Ruh (PDF article, Hortscience)



CLET001 - Clethra alnifolia 'Batsto Blush' (Rare Find Nursery)
CLET002 - Clethra alnifolia EINSTEIN™ (Star Roses/Conard-Pyle) - twisted 12 inch spikes are twisted, unkempt like the famous genius!
CLET003 - Clethra alnifolia 'Firefly' (Rare Find Nursery)
CLET004 - Clethra alnifolia 'Goldsprenkle' - leaves flecked gold. Sport of 'Creel's Calico'. Rarefindnursery.com, accessed Fbhe. 2013.
CLET005 - Clethra alnifolia 'Wild Thing' - 2 ft. tall, compact, wider than tall. Leaves a good dark green. Rarefindnursery.com., accessed Feb. 2013, found in their woods near the nursery.
--end of OROC Data Sharing
Clivia
Clivia Society publications page (plant society website, bookstore)

Clivias by Koopwitz (book, Amazon)

Clivia Society (plant society website)

Clivia show at SQIT
Codiaeum A Codiaeum Encyclopedia: Crotons of the World by Brown (book, Amazon)

Florida's Beautiful Crotons by Brown (book, Amazon)

Peter's Croton Nursery appears to be one of most active, viable places for new cultivar release info.

New upload 10.26.2014 - 277 cultivars

The Croton Society (Crotonmania.org) - offline as "bandwidth exceeded" as of 6.29.2013 and also when checked on 10.26.2014. We understand they disbanded in 2012 or before. If any readers have information from this site and wish to share with author's copyright clearance, we would be pleased to assist.

Chromosome Number and Karyotype Variation in Codiaeum variegatum cultivars by Dent, Chen, Henny, and Li (PDF article, Hortscience)

Genetic Relationships of Codiaeum variegatum Cultivars Analyzedd by AFLF Markers by Deng et. al (PDF Article, HortScience)
 Coleonema

C. pulchrum 'Sunset Gold' (Jeff Wortham)
Coleus Coleus: Rainbow Foliage for Containers and Gardens by Rogers (book, Amazon)

International Coleus Society Encyclopedia of Cultivars:

1450+ cultivars from 1854 to present. The most complete guide to varieties every published.


Exotica 4 by Graf (book, Amazon) - lots of detail on cultivars even if mostly in black and white. Detailed descriptions.

All free Coleus content is now referred to our new subsite called COLEUS CENTRAL™

This site can also be bookmarked as coleussociety.com. This site has the most Coleus content ever assembled in one place.
Colocasia Hatch's Perennials 1.0-3.0 (PDF, New Ornamentals Society)




Breeding Hawaiian Taros for the Future by Cho (university PDF)

Cool Colocasias by Carey and Avent (website article, Plant Delights Nursery)

The Royal Hawaiian® Colocasia Collection (PDF)

International Aroid Society - Cultivar Database Listing by Burch (website, plant society, ICRA cultivar register) - official cultivar register



- C. esculenta LITTLE BLACK MAGIC™ (Southern Living Plants
- C. 'Madeira','Royal Gigantea', 'Sangria'. 'Bikini-tini' (Brians Botanicals)
-Colocasia Trials 2012 with Dr. Cho (Plant Haven)



Colocasia esculenta 'White Lava' (cultivar.org original image, taken at Juniper Level Botanic Garden, copyright 2014. Laurence C. Hatch, All Rights Reserved)
Colocasia gigantea 'Laosy Giant' (Plant Delights, new for 2015)
--end of OROC Data Sharing

Colocasia esculenta 'Morning Dew', the best of the two-tones greens as seen at Juniperus Level Botanic Garden. Click image to enlarge.

Colocasia esculenta 'Black Ripple' ('Puckered Up') - 3-4 ft. tall, habit vigorous (taller than 'Black Magic'), clump-forming, generally lacking stolons, very vigorous. Leaves very glossy, dark blackish-purple, surface very rugose, corrugated, and puckered, reflecting highly variable patterns of lights and iridescence shades, petiole dark purple, slightly paler than the blade. Or: US Patent# 26151 on November 24, 2015 to Brian Paul Williams, from controlled breeding in Louisville, Kentucky, USA in 2009 with unnamed parents, assigned to originator's firm of Brian's Botanicals, propagated by originator in vitro in Eustis, Florida, USA in 2012.

Colocasia esculenta 'Red Eyed Gecko' - 3-4 ft. tall x wide. Leaves more broadly ovate-sagittate, bright lime green, paler or more yellow secondary veins and midrib, distinct reddish or rose-red spot on leaf upperside at the petiole attachement point (pap), giving the appearance of an red eye while being in Gecko green colors. Or: Brian Williams, Louisville, Kentucky, USA as hybrid, http://briansbotanicals.us/, accessed 6.24.2016

Colocasia esculenta 'Painted Black Gecko' - 3-4 in. tall. Leaves glossy dark blackish-purple above, reflective of various colors and light tones, iridescent, slightly rugose and puckered (much less so than 'Black Ripple') more grayish-purple to maroon-gray below. Or: Brian Williams, Louisville, Kentucky, USA as hybrid, http://briansbotanicals.us/, accessed 6.24.2016

Colocasia esculenta 'Black Sapphire Gecko' -  4-6 ft. tall, larger than some black clones. Leaves very large, to 12 in. wide or more, glossy dark blackish-purple, moderately rugose, dark maroon below. Or: Brian Williams, Louisville, Kentucky, USA as hybrid, http://briansbotanicals.us/, accessed 6.24.2016

Colocasia esculenta 'Lemon Lime Gecko' - Leaves very large, wider than normal, light green, sectored (5-25% surface) in a paler lime green. Or: Brian Williams, Louisville, Kentucky, USA as hybrid, http://briansbotanicals.us/, accessed 6.24.2016

Colocasia esculenta 'Madeira' - 2-4 ft. tall, shorter than most cultivars. Leaves medium to light green, distinctly tinged bluish-violet or grayish-purple along the secondary veins, more black and dusk violet-purple tones with more sun.  Or: Brian Williams, Louisville, Kentucky, USA as hybrid, http://briansbotanicals.us/, accessed 6.24.2016

Colocasia esculenta 'Midori Sour' - 3-5 ft. tall. Leaves very wide, lime green overall, much paler and yellower midrib and secondary veins, irregularly darker green blotches (5-10% surface). Or: Brian Williams, Louisville, Kentucky, USA as hybrid, http://briansbotanicals.us/, accessed 6.24.2016

Colocasia esculenta 'Sangrina' - 3-5 ft. tall, stems dark red to pinkish-red, very showy. Leaves dark green, veined bluish to purple shades. Flowers bright pink. Overwintered 3 years (to date, June 2016) in Louisville, Kentucky (USDA 6). Or: Brian Williams, Louisville, Kentucky, USA as hybrid, http://briansbotanicals.us/, accessed 6.24.2016
Columnea
Registered Gesneriads - The Gesneriad Society (plant society website, ICRA) - detailed plant descriptions, origins, parentage, etc. but only the newest material
Convallaria
Hatch's Perennials 1.0-3.0 - 23 cultivars (PDF, New Ornamentals Society)

Coprosma

C. repens 'Marble Queen' (Jeff Wortham)
'Rainbow Surprise' (Jeff Wortham)
'Coumtry Park Red' (Jeff Wortham)


'Inferno' bvy Graham Rice (RHS, website, Hillier)
Cordyline
Cordyline (banksii x pumilio) FESTIVAL™ RASPBERRY 'CorBzr01' (Monrovia)

Cordyline Electric Series (GreenFuse)


'Pink Passion' (Garden Gurus TV)
'Designer Burgundy'  (Garden Gurus TV)
Coreopsis -
Annual or
Tender

Penn State Trial Gardens Report (university website, trial gardens, cultivar evaluation) - 23 cultivars
Coreopsis -
Hardy or
Near Hardy

Herbaceous Perennial Plants by Allan Armitage - a very popular treatise with lots of cultivar notes, identification of species information, and a broad general spectrum of information.


CORE001 - Coreopsis 'Mercury Rising' (Burpee)
CORE002 - Coreopsis palmata 'Indian Summer'
CORE003 - Coreopsis tripteris 'Handy Size'
CORE004 - Coreopsis tripteris 'Mostenveld'
The following registrations are pending
Coreopsis 'Bengal Tiger'
Coreopsis 'Buttermilk'
Coreopsis 'Desert Coral'
Coreopsis 'Firefly'
Coreopsis 'Imperial Sun'
Coreopsis 'Lightning Bug'
Coreopsis 'Pink Sapphire'
Coreopsis 'Summer Punch'
Coreopsis LI'L BANG™ 'Daybreak'
Coreopsis LI'L BANG™ 'Enchanted Eve'
Coreopsis LI'L BANG™ 'Red Elf'
Coreopsis LI'L BANG™ 'Starlight'


Hardy Coreopsis (Terra Nova Nurseries)
Cornus
excluding species
listed below
This is an important nomenclatural change in the genus:
New names for Dr. Orton's Cornus hybrid groups (Cornus x rutgersensis and C. x elwinortonii): http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4547027/

Dogwoods: The Genus Cornus by Cappiello and Shadow (book, Amazon)

A Monograph of the Genus Cornus  by Andre Gayraud with help of Dr. Orton and others - this may be the guide that has been wanted many times before and now with 620 named cultivars. This is a very tricky order and it is about $62 US when I went into the process. You must use the PayPal or a credit card to pay first and then you must fill out of a complex form to actually get the book in one of the six available languages. This is surely  a curious proof (yet again) that Europeans don't seem to understand PayPal or how online ordering is supposed to get rid of mail-in forms! They do require an olblgatory "tax code" and "VAT registration number" mailed to them but apparently the 4% standard is covered by the publisher. Gotta run....just swiped Apple Pay at the grocery store and have four telegrams to send to confirm the transaction - just kidding.

There are two methods of purchasing Cultivar.org plant files
Purchase all plant groups (7.1 gigabytes) for $119,  a savings of over 60% over individual ebook purchases and access from this menu. If you already subscribe click the links below for instant PDF downloads. Individual PDF ebook file purchase as standalone files. These books use DRM by Google so be accessed from this menu.
Just updated 4.8.2015 - Version 3.1 - now  585 cultivars

This includes all species cultivars and renders previous files obsolete.
Just updated 4.8.2015 - Version 3.1 - now  585 cultivars

Click logo above for this genus order page with a free sample.


Manual of Woody Landscape Plants by Dirr (book, Amazon) - very useful evaluations of cultivars, many quite new, from one of the top experts


CORN001 - Cornus controversa GARDEN DANCE™ (Wayside Gardens)

Registration Lists of Cultivar Names in Cornus by Howard (article., Arnoldia, Harvard University)







Cornus
alba,
C. sanguinea,
C. sericea,
and other
red-twig
dogwood taxa

CORN002 - Cornus sericea ERIKA THE BLONDE™ (Song Sparrow Nursery, a Klehm original introduction)
Cornus
florida

Are 'Barton' and 'Cloud 9' the Same Cultivar of Conrus florda L. by Windham and Trigiano (PDF article, University of Tennessee, HRI) - a pioneering DNA study that sorts out two resembant horticultural taxa.

AFPL Markers Identify Cornus florida Cultivars and Lines by Smith et al (PDF article, J. Amer. Soc. Hort,. Sci.)

Cornus
kousa

CORN003 - Cornus kousa 'Empire', 'Pams Mountain Bouquet', and 'Red Steeple' (HortScience) - paid access
CORN004 - Cornus LITTLE RUBY™ (C. kousa 'Miss Satomi' x C. hongkongensis 'Summer Passion') - Dr. Ranney's new breakthrough, the first semi-evergreen to evergreen, pink-bracted dogwood.
CORN005 - Cornus kousa MANDARIN JEWEL (Brotzman's Nursery) - orange fruit
--end of OROC Data Sharing

Susceptibility of Cultivars and Hybrids of Kousa Dogwood to Dogwood Anthracnose and Powdery Mildew by Ranney, Grand, and Knighten (PDF university article, Journal of Arboriculture) - very useful article on separating cultivars on the basis of disease resistance

Genetic Profiling of Red-bracted Cornus kousa Cultivars Indicates Signifcant Cultivar Synonomy by Trigiano, Ament, Windham, and Moulton (PDF article, HortScience) - a very important article in sorting out the non-white Kousa cultivars.
Cornus
mas,
C. officinalis,
and other
spring
gold taxa

CORN006 - Cornus mas CLYDESDALE™ (Songsparrow Nursery, a Klehm original)
Correa
List of Registered Cultivars Derivrd from Australian Native Flora by Australian Cultivar Registration Authority (ICRA, cultivar register, ACRA, Australian National Botanic Gardens) - many of the new cultivbars described in rich retail
Cortaderia
Hanburyana July 2013 features an article by J.D. Armitage on C. selloana 'Candy Floss'. He also discusses other pink cultivars and how they differ, including material than belongs to C. jubata.


CORT001 - Cortaderia selloana 'Blue Bayou' (Hoffman Nurseries) - foliage distinctly blue to bluish-green.

CORT002 - Cortaderia pilosa var. minima 'Plume Delight' (Plant Delights) - 42 in. tall in leaf, 72 in. in  flower. Flowers up to a month before C. selloana (Raleigh, North Carolina). Leave bluish-green. Hardy to USDA 7b. Selected by Eric Hammond and Dan Hinkley (ECH00067) from near Conquillo, Chile.

CORT003 - Cortaderia selloana 'Candy Floss' - see Hanburyana July 2013

CORT004 - Cortaderia selloana MINIGOLDEN™ 'Vercor5' - dwarf,  shorter. Leaves margined yellow to gold.
Bred by Bert Verhoef. See bertverhoef.com, accessed 5.30.2015.

CORT005 - Cortaderia selloana MINIPAMPAS™ 'Vercor3' - 50-100cm tall, a shorter clone. Leaves green, typical.
Bred by Bert Verhoef. See bertverhoef.com, accessed 5.30.2015.

CORT006 - Cortaderia selloana MINISILVER™ 'Vercor6' -  dwarf, shorter. Leaves margined white to silver.
Bred by Bert Verhoef. See bertverhoef.com, accessed 5.30.2015.

CORT007 - Cortaderia selloana 'Scarlet Wonder' - 2.5m tall. Leaves green. Flower inflor. to 90cm long, rich crimson to dark violet-red to purplish-red, the darkest red shade yet known (June 2015), fairly pendulous and cascading. The claim for trademark status of this name is invalid since the US Plant Patent app fixes this garden taxon in the cultivar rank as annotated by the applicant. US Plant Patent #19015 on July 15, 2008 to Johan Troelstra as sport of unnamed clone, Netherlands 2002, assigned to Compass Plants BV

Corydalis

CORY001 Corydalis BLUE LINE® 'Couriblue' (Minier Nurseries) - 30-50cm tall x 50-80cm wide, very large for the genus, more vigorous than either parent. Flower stems reddish, showy, tepals light-medium blue, very long bloom period "nearly non-stop from spring to autumn", blooms to 35mm wide, regularly spaced but thickly clustered, sweet honey scent. Leaves light green, lobed. Cross of C. flexuosa x C. elata by Jacques Couturieux, Eur PBR 2012-0594.
Your computer, tablet, phone, or book reader can have the latest cultivar encyclopedia for each genus in handy PDF form - the most complete cultivar references for more than 103 ornamental, landscape genera. CULTIVAR.ORG is a product of more than 35 years of work by leading horticultural taxonomist Larry Hatch and the hundreds of experts in the New Ornamentals Society and our experts partners around the world. We exceed your familiar plant manuals, horticultural society "complete" guides, and most websites by 3-20 times more cultivars and with much more specific, detailed data. For example, 159 Aucuba cultivars, 191 Astilbe, 274 Aquilegia, 109 Ajuga, 1032 Acer, 59 Abelia, 175 Aglaonema, and 103 Aesculus. For just $119.00, you have access to these huge, original datafiles up until 2018.

If you prefer to purchase volumes separately our Google Play Books Store has many of the same files for $7.20 to $20.00 each. CULTIVAR.ORG is however about 60% less expensive since you are mass-purchasing access at the Preferred Library Rate.
Corylopsis
USDA - ARS - US National Arboretum - Drs. Pooler and Olsen - Evaluation and Genetic Improvement of Woody Ornamental Landscape Plants for Disease and Pest Tolerance, Non-invasiveness, and Ornamental Traits


CORYLO001 - Corylopsis spicata 'Golden Spring' (Mark Weathington, JC Raulston Arboretum)
Corylus

Cultivar.org original key by Larry Hatch

Cosmos

COSM001 Cosmos bipinnatus 'Cupcake White' is a fun and useful breakthrough in this genus. These are not fused, tubular rays but a fusion of all rays!  I've always loved the cosmos whether in the white to red range of this species or the yellow to orange of C. sulphureus. The are as solid as any perennial for daisy style form and color - and this species fine foliage is a rich benefit. Cupcake Series from Thompson & Morgan, a genuine game-changer has fused, cupped petals with lots of texture, ridges, and therefore shadows - all with a perfect gold button center. It is almost Cosmos-becomes-Papaver. Wow and super wow. Image courtesy of www.fleuroselect.com. Click image to enlarge 'cause we don't run no crappy thumbnail site 'round here.
Cotinus
COTI001 - Cotinus 'Candy Floss' ('Grace' x 'Daydream') - 3-4m tall x wide. Flowers in large inlfor. , appearing medium, airy pink overall, darker in shade. Leaves red, orange, and gold shades in fall, showy. Hillier Nurseries, their own hybrid intro. fall 2014.
Cotoneaster
Hatch's Cultivars of Woody Plants - (New Ornamentals Society)


COTO001 - Cotoneaster procumbens LITTLE DIPPER™ 'Gerald'
COTO002 - Cotoneaster dammeri 'Lemon Funky' - Stems greyish-purple, parent plant greyish-green. Leaves with new growth yellow, becoming yellowish-green, Originated by Hans Jurgen Mueller as sport found in Kornwestheim, Germany in 2008 from unnamed cultivar, US Patent #23746 on 7.16.2013.
REJECTED - Cotoneaster horizontalis Northe
--end of OROC Data Sharing


USDA - ARS - US National Arboretum - Dr. Olsen - Evaluation of Cotoneaster species: Landscaper Performance, Fire Blight Resistance, and Ploidy Levels
Cotyledon
Crassula 103 cultivars, this being the most complete and current checklist yet produced.
Crataegus




Hawthorns and Medlars by James B. Philips (printed book, Amazon, RHS, Timber Press) - the great monograph that tackles one of the most thorny woody groups, literally and figuratively, and handles their garden and wild taxonony with ultimate skill. Highly recommended, especially as new and used copies are just $4-6 a copy. 
      

x Cremosedum
Crinum

Flora of North America
Garden Bulbs for the South by Ogden (book, Amazon)

Bulbs for Warm Climates by Howard (book, Amazon

Plant Delights Gallery by Avent (nursery website, gallery) - numerous common and rare clones, many offered from the nursery

  135 cultivars
Crocosmia
CROC001 - Crocosmia NOVA™ DRAGONFIRE - 26 in. tall x 30 in. wide, upright-arching, not flopping as older reds, multiplying well. Flower corolla dark red to scarlet, contrasting gold stamens, often blooming the first year as young plants. Terranovanurseries.com, accessed 5.25.2015, intro. 2015.
--end of OROC Data Sharing
Cryptomeria Pinetum Novum by Hatch - 201 cultivars - info/order


RHS Encyclopedia of Conifers (book) - numerous cultivars and stunning photographs

Descriptions and A Key...by Rouse - Robert Rouse is the only person who has ever earned as Master's degree in ornamental Japanese-cedars and is the leading authority on cultivar taxonomy.

Pinetum Novum by Hatch - PDF sample - the full version of this file is included with CULTIVAR.ORG DIRECT ACCESS

Differences in Winter Browning among Japanese-cedar Cultivars by Contreras, Dettermann, and Friddle (PDF article, Hortscience)

The Conifer Treasury 5.0 by Mesterhazy (website, cultivar checklist) - very large, impressive checklist

Variations of Cryptomeria japonica by Hatch - my picks of the best new and old clones (click logo below)

RHS Conifer Cultrivar Registers (Royal Horticultural Society, ICRA)


    203

Previously known 201 cultivars based on Hatch's Cultivars of Woody Plants
CRYP001 - Cryptomeria japonica DRAGON WARRIOR™ (Hawksridge Farms)
CRYP002 - Cryptomeria japonica 'Little Kean'
--end of OROC Data Sharing

Cudrania
Cunninghamia
Pinetum Novum by Hatch - 22 cultivars - info/order

RHS Conifer Cultrivar Registers (Royal Horticultural Society, ICRA)
Cuphea

Trail Gardens Report (Raker) - a very useful set of images and detailed ratings - select the genus from the pulldown menuPenn State Trial Gardens Report (university website, trial gardens, cultivar evaluation) - 19 cultivars
CUPH001 - Cuphea VERMILLIONAIRE™ (Proven Winners)
Cupressus
and
x  Cupressocyparis
(x Cuprocyparis,
x Hesperotropis,
etc.)


C. Schulz
Pinetum Novum by Hatch - info/order



C. sempervirens 'Italico' and 'Mediterraneo'


CUPR001 - Cupressus macnabiana 'Lilah' (RHS, Nomenclatural Standard, JSTOR)
CUPR002 – x Cupressocyparis leylandii ‘Weeping Leyland’ – cascading habit, upright, vigorous. Camforest.com, accessed 4.23.2015
--end of OROC Data Sharing

RHS Conifer Cultrivar Registers (Royal Horticultural Society, ICRA)


http://www.juniperus.org/uploads/2/2/6/3/22639912/337_-_2014_j_am_hort_sci_leyland_cypress_dna_seq_data_w_mao.pdf (a highly informative article on the genetic origins of Leyland cypress cultivars, now named by the authors to x Hesprotropis leylandii)
Cyclamen -
Florist/Indoor

Cyclamen persicum: It's Natural and Cultivated Forms by Blasdale (book, Amazon) - often in scarce supply as it dates from 1952.

Cyclamen persicum by Blasdale (preview only)

Cyclamen -
Hardy/Outdoor

Cyclamen by Chris Grey-Wilson (book, Amazon) - the modern classic

Registration of Cultivar Names by Dr. Wilbert Hetterscheid of the Cyclamen Society (plant society website, ICRA, cultivar register) - just click on the species name button to the left and the cultivar list will appear. The font is very small so pressing Ctrl+ might be useful for those of us with less than perfect vision.

New hybrids  by Dan Heims, Terra Nova Nurseries (click logo)


Cypripedium Cyprpedium.de - a primary source for information of their recent and breakthrough hybrids whch belong mostly to the Frosch® series.

Plant Delights has an outstanding assortment including those of the FROSCH series
Cyrilla
Cytisus

196 cultivars + botanical taxa - click logo above

Mei Series patents (US Patent database, Google Patents)
Copyright 2013, 2014. Laurence C. Hatch. All Rights Reserved. www.cultivar.org
Dahlia
Enyclopedia of Dahlias by McClaren (book, Amazon)

The New Plant Library: Dahlias by Collins (book, Amazon)

RHS Cultivar Register (ICRA, cultivar register) - recent supplements are free in PDF form but the majority of volumes are purchased. The amount of material is very extension such as 16 pages in 2012 and 51 pages in 2011.

National Dahlia Collection UK

Dahliaregister (DDFGG): http://www.dahlie.net/en/AUSWAHL.html - highly recommended site in four languages from the German Dahlia, Fuchsia, and Gladiolus Society. Very nice search capabilities as well as a traditional encyclopedia which can be browsed by cultivar name.

Trail Gardens Report (Raker) - a very useful set of images and detailed ratings - select the genus from the pulldown menu


The Amateur's Book of the Dahia by Stout (PDF ebook, Google Books) - an old classic but sure to be of interest for Dahlia breeders, collectors, and historians


  1. http://www.hallsofheddon.co.uk/dahlias
  2. http://www.dahliaworld.co.uk/suppliers.htm
  3. http://www.freysdahlias.com
  4. http://www.dahlias.com/
  5. http://www.jrg-dahlias.co.uk/
  6. http://www.gilbertsdahlias.co.uk/1.html
  7. http://www.aztecdahlias.com/
  8. http://www.dahliadivas.com
  9. http://cgdahlias.com/dahlia_catalog.html
  10. http://www.dahlias4u.com

Dahlias.net - Nursery source list (website, nursery source links) - new and old cultivars beyond measure.
Daboecia


Your computer, tablet, phone, or book reader can have the latest cultivar encyclopedia for each genus in handy PDF form - the most complete cultivar references for more than 103 ornamental, landscape genera. CULTIVAR.ORG is a product of more than 35 years of work by leading horticultural taxonomist Larry Hatch and the hundreds of experts in the New Ornamentals Society and our experts partners around the world. We exceed your familiar plant manuals, horticultural society "complete" guides, and most websites by 3-20 times more cultivars and with much more specific, detailed data. For example,  201 Cryptomeria, 178  Cornus kousa cultivars, 91 Cercis, 31 Clethra, 271 Chamaecyparis obtusa, and our massive ICS Coleus File with 1409 cultivars.

 Please click the logo above for details.

If you prefer to purchase volumes separately our Google Play Books Store has many of the same files for $7.20 to $20.00 each. CULTIVAR.ORG is however about 60% less expensive since you are mass-purchasing access at the Preferred Library Rate..
Dacrydium
Dalea
Damnacanthus
Daphne

Daphnes: A practical guide for gardeners by Robin White (book, Amazon) - the leading monograph on garden taxa.


DAPH001 - Daphne x houtteana 'February Plum' (Monrovia)
DAPH002 - Daphne odora 'Maejima' (Wayside Gardens)
Daphniphyllum


DAPNI001 - Daphniphyllum teijsmannii 'Mountain Dove', a ghostly marginated and sectored sport with contrasy violet-red petioles. Click image to enlarge. Image above is not part of OROC Data Sharing and must not be used.
Davidia
THIS CONTENT SPANS THE ENTIRE RANGE OF HATCH'S CULTIVARS OF WOODY PLANTS

DAVI001 - Davidia involucrata 'Aya Nishiki' (5/6)
lc: wide creamy-white margins becoming mottled bluish-green, 
lc: white, and green. On the Buchholz website the margins are rich yellow.
or, pat: Akira Shibamichi, Japan, as seedling, US Patent applied for 5/11/2006
so, ph: http://www.buchholznursery.com/plant_page.html?id=26c354

DAVI002 - Davidia involucrata 'China Compact' (2/10)
ha: smaller, more compact
so, in: http://www.buchholznursery.com (online catalog Feb. 14, 2010)

REGISTRATION PENDING NEW NAME - Davidia involucrata 'Columnaris' invalid post-1959 Latin name (6/7)
ha: upright
ns: requires a new, valid vernacular name if proven of interest.
so: www.bloomrive.com (online catalog 2007)

DAVI003 - Davidia involucrata 'Crimson Spring' (6/7)
lc: burgundy-red new growth, later more bronze-red, then more green
so: www.bigdipperfarm.com (online catalog 2007)
so: www.greergardens.com (online catalog 2007)

DAVI012 - Davidia involucrata 'Iseli Fastigiate' (10/2013)
ha: narrowly erect.
or: Iseli Nursery, Oregon, introduced 2013, from a distinct narrow seedling

DAVI004 - Davidia involucrata 'Kylees Columnar' (2/10)
ht: 10 ft. tall x 2 ft. wide (10 years) 
ha: columnar, pillar-like
so, in: http://www.buchholznursery.com (online catalog Feb. 14, 2010)

DAVI005 - Davidia involucrata 'Platt's Variegated' (2/5)
lc: variably mottled and sectored white
or: Platt Garden, Portland OR USA as seedling
so: Collectors Nursery (online catalog 2005)

DAVI006 - Davidia involucrata 'Purpleleaf' (5/6) provisional name
lc: dark burgundy to purple new growth (RHS 79A,B becoming 79B with 136C)
or, pat: Akira Shibamichi, Japan, as seedling, US Patent applied for 5/11/2006 
ns: simple descriptive cultivar names such as "purpleleaf" are not allowed under
ns: the modern code. This clone needs a new name.

DAVI007 - Davidia involucrata 'Shibamachi Variegated' (2/10)
lc: broadly margined yellow (to 35%0, red tinged edge in fall
so, in: http://www.buchholznursery.com (online catalog Feb. 14, 2010)

DAVI008 - Davidia involucrata 'Sonoma' ('Sonoma Clone')
ht: 30-40 ft. tall x 25-30 ft. wide (as species?)
fq: more floriferous than species typical
fd: white bracts to 10 in. long - some species variants are 8 in. at the most
ns: probably belongs to var. vilmoriniana which is more common in gardens.
or: Sonoma Hort. Nursery before 1984

DAVI009 - Davidia involucrata 'Sumako' (2/10)
so, in: http://www.buchholznursery.com (online catalog Feb. 14, 2010, name only, not described)

DAVI010 - Davidia involucrata 'Variegata' post-1959 illegit. name(2/10)
lc: mottled and sectored (20-50%) in bright golden-yellow
so, in: http://www.buchholznursery.com (online catalog Feb. 14, 2010)

DAVI011 - Davidia involucrata 'White Dust' (2/10)
lc: subtley spotted white and pale green (30-60%), no bold sectors
lc: or zones
so, in: http://www.buchholznursery.com (online catalog Feb. 14, 2010)


Delphinium
Delphiniums by Bassett and Basset (book, Amazon)

Delphinium Register by RHS (ICRA, cultivar register)

Delphinium Bulletin by RHS (pdf report, plant society, plant evaluation, cultivar trials) - 40 cultivars

Dowdeswells Delphiniums Ltd. (nursery catalog, nursery website, gallery) - a fine reference site from a leading breeder


Delphinium 'Pink Punch' (Walters Gardens)



RHS Wisley Delphinium Trial

Dentaria
DENT001 - Dentaria diphylla 'Bama Jama' (Plant Deligts) - 6 in. tall x 12 in. wide at first, potentially to 36in.w ide in 5 years.  Leaves dark green, slightly silver veined, very dark opurple below.  Plantdelilghts.com, accessed 5.7.2015, their own discovery in Calhous County, Alabama, thriving in a seasonally flooded lowland, handling wet conditions very well.

DENT002 -  Dentaria diphylla 'American Sweetheart' - 6 in. tall.. Leaves matt olive green, no shine, silvery or paler whitish veins, dark opurple below, the most colorful clone known to Plant Delights (May 2015). Plantdelights.cm, accessed 5.7.2015.
Deutzia
DEUT001 Deutzia hookeriana 'Carolyn Hardy' (RHS, Nomenclatural Standard, JSTOR)

Deutzia YUKI SNOWFLAKE™ 'NCDX1' - Or: US PPAF, Dr. Thomas Ranney

Deutzia YUKI CHERRY BLOSSOM™ 'NCDX2' - 24cm tall (3 years per US PPAF), expedted to be 2 ft. tall x 3 ft. wide in general landscape use, low-growing, arching-soreading, flowers white striped in pink, abundant, leaves tinged bronze-purple in fall. Or: US PPAF to Dr. Thomas Ranney, Raleigh, North Carolina on 1.28.2016 as cross of D. gracilis 'Nikko' x D. x rosea 'Carminea'. Appears to be the first very low, groundcover-sized cultivar with pink flowers. Web:
http://www.ces.ncsu.edu/fletcher/mcilab/introductions/yuki-cherry-blossom-deutzia.html 






Deutzia 'Strawberry Fields' is real. I know when it's a dream and this a dreamy pink-flowering shrub with immense value. It remains one of the best cultivars to come along in the last 50 years or so. It does not have some of the hype of other material yet it is better than most if not all for pink floral tones. It all works out as a solid, reliable, proven clone. The variegated Deutzia cultivar wunderkind, with one or two exceptions, strike me as ugly and a feeble attempt to extend the genus' value for another four to six months. It's nothing to get hung about but Deutzia are all about flowers, big and scented ones, slightly scented here, colorful petals if not white, and amazing us like few others shrub in the temperate garden. It must be high or low and regularly pruned. If we take it down and keep this glorious thing at three feet with regular pruning - and that lack of hard cutting is the downfall of old Deutzia - it will be strawberry fields forever...
Dianella
Dianthus The International Dianthus Register by Leslie (RHS, ICRA, cultivar register) - recent supplements are free in PDF but 2001 and earlier volumes are available for a small sum.

The Dianthus by Ingwersen (book, Amazon) - a classic and foundational work from 1949.

Carnations and Pinks: The Complete Guide by Hughes (book, Barnes and Noble)

Carnations and Pinks by McLeod, Douglas, and Cook (book, Barnes and Noble) - a classic 1911 work by three British pioneers on this genus.

Carnations: Perpetual-flowering Carnations, Borders, and Pinks by Bailey (book, Amazon)

Carnations and Pinks for Garden and Greenhouse: Their True History and Complete Cultivation by Galbally and Galbally (book, Amazon)

Carnations, Picotees, and the Wild and Garden Pinks by Cook (book reprint, Amazon) - this is the printed version. Google Books has a free PDF copy here.



A Monograph of the Genus Dianthus by Williams (PDF, ebook, Google Books, Journal Linnean Society Botany) - scan of this 1893 classic from Cornell's Mann Library and actually signed by L.H. Bailey himself. Curious.

The Book of the Carnation by Brotherston and Smith (PDF, Google Books) - 1904 classic, very nice material.

Evolution of Dianthus caryophyllus semperflorens by Lamborn (PDF ebook, Google Books) - an interesting 1901 study about how this species or group was formed.


Herbaceous Perennial Plants by Allan Armitage - a very popular treatise with lots of cultivar notes, identification of species information, and a broad general spectrum of information.
Dicentra

DICE002 Dicentra 'Fire Island' (Walters Gardens, available 2015)
DICE003 Dicentra 'Sulphur Hearts' (PlantariUM)


DICE001 Dicentra spectabilis 'Valentine', probably the first true red in the big species format, certainly much improved with the contrast of the white tissues and burgundy new leaves. Click image to enlarge.
Dieffenbachia
HITS (House, Interior, Tropical, Succulent) Plants by Hatch - 2013-15 Early Preview Edition - 135 cultivars - (PDF ebook, 400+ pages leading to 1300 pages in 2017)


'Tropic Honey'
'GoldRush'
'Sterling'

International Aroid Society - Cultivar Database Listing by Burch (website, plant society, ICRA cultivar register) - official cultivar register

Analysis of the Genetic Relatedness of Dieffenbachia Cultivars Using AFLP Markers by Chen, Henny, Norman et al. (PDF article, J. Amer. Soc. Hort. Sci.) - one of those wow studies that takes hours to absorb, so far above traditional taxonomy I am stunned.


Digitalis

DIGI001 Digitalis x hybrida FOXLIGHT™ PLUM GOLD - 22-24 in. tall. Flower corolla violet-plum, throat more gold with dark spots. USDA 7-10. Darwinperennials.com, accessed 4.11.2015
DIGI002 Digitalis x hybrida FOXLIGHT™ RUBY GLOW - 22-24 in. tall. Flower corolla dusky violet-red, dark ruby red at base on exterior, dark apricot-gold center, few dark spots. USDA 7-10. Darwinperennials.com, accessed 4.11.2015
DIGI003 Digitalis x hybrida FOXLIGHT™  ROSE IVORY - 22-24 in. tall. Flower corolla very wide, open, flaring, rich rose-pink on interior, interior almost entirely pale ivory to like orange, heavily dark-spotted. USDA 7-10. Darwinperennials.com, accessed 4.11.2015
Dionaea


FlyTrapCare: A Comprehensive Dionaea Website (special interest website, checklist)
Diospyros

DIOS001- Diospyros virginiana MAGIC FOUNTAIN™ 'JN5'  (Pleasant Run Nursery) - 10-12 ft. tall 5-10 ft. wide, distinctlky weeping, inverted or columnar type weeper as young plants, apparently wider with age. Fruits present, female clone, maturing to yellow, edible after frost. Leaves red to yellow in fall, potentially semi-showy.Selected by Ray Jackson, Tennessee, USA.

DIOS002 - Diospyros kaki 'Shibamichi Weeping' - moderately to broadly weeping, a classic weeping, upper branches hooked and arching much as Fagus sylvatica 'Pendula',  Fruit medium orange, a female clone. Selected by Akira Shibamichi, Japan, reported in the US c. 2014. It s readily distinct from MAGIC FOIUNTAIN of another species by it's wider, more open form, and much larger, more orange, fruit. Web: https://jcraulstonarboretum.wordpress.com/
Disanthus

Disporopsis

Disporum
32 cultivars
Disporum in Cultivation by Bleddyn Wynn-Jones (PDF article, New Plantsman, RHS)


Disporum flavens [Simm's variegated - apparently not yet an official cultivar name] is another treasure from the 12,000 taxa rich Juniper Level Botanic Gardens @ Plantdelights.com in Raleigh, North Carolina. As many of you know, Tony and Michelle Avent and staff built are still expanding and refining one of the finest, most mind-blowing collections of herbaceous plants anywhere in the world. It is a modern Mecca, Lourdes, or Vegas for perennial lovers (and who among is not one...no, please tell us...we'll round them up and provide corrective therapy (just kidding)) and yet they also have diverse collections of precious woody plants in terms of both rare species and new cultivars. Click image please.
Distylium

Advancing the Landscape Frontiers of Distylium by Dr. Mike Dirr - superb gallery and discussion of his hybrids BLUE CASCADE®, COPPERTONE™, EMERALD HEIGHTS®, LINEBACKER™, and 'Vintage Jade'
Dodecatheon
Doronicum
Dracaena
HITS (House, Interior, Tropical, Succulent) Plants by Hatch - 2013-15 Early Preview Edition (PDF ebook, 400+ pages leading to 1300 pages in 2017) - 95 cultivars, many with modern images and historical scans



Dracaena deremensis 'Lemon Surprise' from our NOS Indoor Trials.


USDA-University of Hawaii - Dr. Leonhardt

DRAC001 - Dracaena steudneri 'Cintho Lemon' - as 'Jelle' and species but leaves centrally marked yellow to yellowishs-green, dark green edges, leaves 28cm long x 5.5 cm wide.  US Plant Patent #25556 on May 12, 2015 to Jan B. Campo, sport of 'Jelle'
DRAC002 - Dracaena reflexa 'KKDR201203' - US Plant Plant #24683. Trade name not established as of May, 23, 2015.
Drimys
Dryopteris 40 cultivars


DRYO001 - Dryopteris labordei 'Golden Mist' (Plant Delights) - a strangely pretty ferm with glossy, golden new foliage.
--end of OROC Data Sharing
Duchesnia
Echinacea Hatch's Perennials 1.0-3.0 - 103 cultivars (PDF, New Ornamentals Society)


RHS/AHS Encyclopedia of Perennials by Rice (book, Amazon)

Chicagoland Grows® (website, gallery) - descriptions and images of the Chicago Botanic Garden hybrids

Herbaceous Perennial Plants by Allan Armitage - a very popular treatise with lots of cultivar notes, identification of species information, and a broad general spectrum of information.

A Review of the Taxonomy of the Genus Echinacea by McKeown (PDF article) - not a cultivar article but this is a good read to understand species deliminitation and some rare taxa we in gardens might well use in future breeding.

The New Coneflowers by Dan Heims of Terra Nova Nurseries (click logo)



Edgeworthia
Hatch's Cultivars of Woody Plants - 23 cultivars (New Ornamentals Society)


I
Edgeworthia papyrifera 'Nanjing Gold'
Elaeagnus
Hatch's Cultivars of Woody Plants - 50 cultivars (New Ornamentals Society)
-

ELAE001 - Elaeagnus x ebbingei OLIVE MARTINI™ 'Viveleg' (Star Roses and Plants) - 10-15 ft. tall x wide, apparently typical species vigor, upright, dense, more upright and stronger in trials than 'Gilt Edge'. Leaves very dark olive green (base color darker than 'Gilt Edge'), margined light yellow at 10-20% surface, more stable chimera than 'Gilt Edge'.US Plant Patent #20177 on July 7, 2009 to Christian Vivies, France as sport appearing in Toulouse, France.
Engelmannia
ENGE001 - Engelmannia peristenia 'Bergheim' - 24 in. tall. Flower rays yellow (as species), floriferous. Plantdelights.com, accessed 4.22.2015
Enkianthus
33 cultivars


ENKI001 - Enkianthus campanulatus 'Lipstick' (Rare Find Nursery) - flower corolla white, about 20-25% surface at the apex bright hot pink, not bluished but strongly marked, contrasting much. Rare Find Nursery selection.
ENKI002 - Enkianthus campanulatus 'Bruce Briggs' - flower corolla nearly 100% bright pinkish-red red, only the small green calyx giving contrast. Selected Weston Nurseries, Mass., USA by Chris Rogers, Propagator, 1980's, only recently in the the US trade under this name, c. 2015, sometimes called "Weston red seedling" or similar before. Westonnurseries.com, accessed 5.5.2015 does not mention it but shows 'Red Velvet' which we believe to have slightly pink tips over a mostly red corolla and not the same clone.Said to be named for the founder of Briggs Nursery, Washington, USA who list it .
Epigaea
Epilobium

E. canum 'Chaparral Silver' (Jeff Wortham)
Epimedium The Genus Epimedium by Stearn (book, Amazon) - the starting place for knowledge of the genus in both the wild and gardens.

Hatch's Perennials 1.0-3.0 - 155 cultivars (New Ornamentals Society)

RHS/Plantsman - An overview of Epimedium by Tony Avent (PDF)

Chicago Botanic Garden - Plant Evaluation Notes by Mark R. Rudy (PDF)

The Epimedium Page by Darrell Probst (website)

Epimedium (Fairy Wings): Great Shade Perennials for the Early Spring Woodland Garden by Avent (website article, Plantsman Magazine, Plant Delights Nursery)

I
Hatch Perennials with 155 existing cultivars is our standard reference 
EPIM001 - Epimedium sempervirens 'Cherry Hearts'
EPIM002 - Epimedium acuminatum 'Ruby Shan' (Plant Delights)
Epiphyllum
Bulletin of the Epiphyllum Society (periodical, plant society)

Epiphyllum by Supple (book, Amazon)

Epiphyllum Handbook by Haselton

Epiphyllyum Society of American (plant society website)
Epipremnum

'Green Genie'
'Pearls and Jade'
Equisetum


EQUI001 - Equisteum giganteum 'El Tabacal' (Plant Delights) - 120 in. tall, very massive form, quite highly branched and frankly prehistoric with numerous recurving branch whorls.  USDA 8b, handling 15 deg. F. in ground when Tony Avent found other clones and accession less hardy. Plantdelights.com, accessed 5.7.2015, obtained from Chad Husby in Argentina near El Tabacal, Salta Prov.
-end of OROC Data Sharing
Erodium

Preliminary Checklist of Erodium Cultivars by David Victor

Geraniaceae.com (nursery website) - probably the USA's largest assortment, over 60 taxa including new cultivars.
Eranthis
Erica
see Calluna

Erigeron
Hatch's Perennials 1.0-3.0 - 69 cultivars (New Ornamentals Society)

Episcia
Registered Gesneriads - The Gesneriad Society (plant society website, ICRA) - detailed plant descriptions, origins, parentage, etc.

Steptrocarpus Info (website, gallery) - this site has a nice gallery of cultivars to about 2007.

Violet Barn (nursery catalog, gallery) - new and classic cultivars, many not yet registered

Years ago I put together a small Epi collection and found the eBay offers the least expensive and sometimes the only path to secure new cultivars. Some new hybrids were $10-40 bids and if you lost or failed to bid there we no other channels unlike new Saintpaulia.
Eriobotrya
Erodium Erodiums in Cultivation (book, Amazon)

Geraniceae Group Booklist (society website)

Geraniaceae.com (nursery website, reference catalog) - amazing reference catalog, about 60 taxa
Eryngium
Eucalyptus
EUCA001 - Eucalyptus gunnii FRANCE BLEU® (Sapho.fr) - one of the frosty blue clones ever.
EUCA002 - Eucalyptus gunnii AZURA® 'Cagire' - 4m (10 years) where cold hardy, habit neater ,more compact, branching more ornamental, and yet more vigorous than random seedlings.  Leaves rich azure blue, appearing quite silvery-glaucous in bright light, darker in shade.  More cold hardy in French trials, proven one of the most cold tolerant clones in this species, handling up to -18 to -20 Deg. C. in France. It survived when other seedlings died. Roots in  high percentagres, even from coppaced shoots. Eur PBR to Afocel, France.It should be regarded as one of the most cold hardy and proven ornamental clones  in the genus today (May 2015).
Eucomis
NODgeo by Hatch - 69 cultivars + plus other taxa - (PDF ebook, New Ornamentals Society) - this checklist was completed in August 2013 and has the new stuff.


Plant Delights Nursery (nursery website) - currently 13 taxa, mostly new hybrids


Eucomis 'Freckles' is one of the true standouts in this increasingly cultivar-crowded genus where every party has what they claim to be the darkest purple leaf and the best cream-green flower and so on. This is surely one of the finest marked ones. Photo courtesy of and copyright owned by www.terranovanurseries.com. Please click image and do visit the TNN website.
Euonymus
Manual of Woody Landscape Plants by Dirr (book, Amazon) - very useful evaluations of cultivars, many quite new, from one of the top experts

Hatch's Cultivars of Woody Plants - 193 cultivars (New Ornamentals Society)

Esveld Nursery - slides (nursery website, gallery) - an outstanding collection of images from their large arboretum, including many new, rare cultivars


E. planipes 'Sancho' (Blue Bell Nursery



EUON001 - Euonymus fortunei DAN'S DELIGHT 'Dandel' - 40cm tall x 60cm wide, compact, dense. Leaves very dark green, margined white to 50-90% or surface, on older mature leaves this white is very clean, bright, not creamy nor muddled in gray tones, one of the most white intense clones reported (May 2015), new tips a bit more yellow to cream in the chimera. Holds color all year where hardy. Selected by Dan Barnet, England, Eur PBR #2014-0121, intro. 2013

EUON002 - Euonymus alata 'Russell Milstead' (Song Sparrow Nursery, Klehm) - 3-5 ft. tall x wide (5 years), dense, subglobose. Leaves a very intense, bright ruby red in fall. USDA 4 hardiness.

EUON003 - Euonymus fortunei WHITE ALBUM™ 'Alban' - low, dense mound, better form than similar  Emerald Gaietiy'. Leafspot resistant. Leaves with very wide white to light cream margins. Springmeadownursery.com, accessed April 2013.
--end of OROC Data Sharing
Eupatorium

Flora of North America
RHS/AHS Encyclopedia of Perennials by Rice (book, Amazon)

Herbaceous Perennial Plants by Allan Armitage - a very popular treatise with lots of cultivar notes, identification of species information, and a broad general spectrum of information.



The Cultivated Forms of Eupatorium cannabium L. by Whitehouse (Hanburyana 2: 29-34 (2007))


EUPA001 - Eupatorium maculatim 'JS Humble' - 50cm in leaf, 80cm tall in flower, shorter, firmer, stronger stems. Flower infl. larger than species typical, rich purplish-laveder to light purple, dome-shpaed (not flat). Jan Spruyt, introduced 2014.

EUPA002 - Eupatorium perfoliatum 'Witte Wolken' - 50cm tall in leaf, 80cm tall in flower, strong stems. Flower heads white. Selected by Jan Spruyt, vasteplant.be, accessed 6.7.2015

EUPA003 - Eupatorium fistulosum 'Early Riser' - 84 in. tall in flower. Flower heads mauve-lavender, well-branched, blooming earlier than much species material (mid to late June, Raleigh, NC).Tony Avent, Plant Delights Nursery, Raleigh, North Carolina found on roadside near NC Highway 42 in Johnston Co., North Carolina. Rooted stock produced stock with the same early flowering trait, Introduced 2011.
Euphorbia -
Hardy Perennial



RHS/AHS Encyclopedia of Perennials by Rice (book, Amazon)
Herbaceous Perennial Plants by Allan Armitage - a very popular treatise with lots of cultivar notes, identification of species information, and a broad general spectrum of information.


Euphorbia
pulcherrima
and other
Poinsettia
A very large cultivar presentation with new Cultivar Groups and probably the best cultivar history ever recorded, dating the first white, pink, and double clones to the 1800's.

Suntory PRINCETTIA Series


Variations of Poinsettia:



Euphorbia (pulcherrima x cornastra) PRINCETTIA(R) MAX WHITE is one of the modern crosses between the familiar Poinsettia and another bract-bearing species with narrower, more cut, sharp bracts called Euphorbia cornastra. That species only appears in white. When we add the red and pink and orange pigment genetics of the long-bred species, we get lots of curious pink and white combos - no real red in the cross so far in 2014 but things are getting darker and bolder with some nice luminous lipstick pink shades. This one was imaged on November 22, 2014 so it will get fuller, more bractiferous (also floriferous as true flowers occur) and more on the narrow-bracted, eccentric side of this new hybrid realm. If you note my US quarter in the shot, it's obvious how petite and finely textured these bracts are and this entire plant is roughly 16 inches wide and tall in an 6 inch pot. This cross of species is not new but coming to everywhere and being afforable is new to 2013 nd 2014. They are also selling the PRINCETTIA series in tiny pots as impulse items everywhere from your Mart store to florist shops (so-called) in your local grocery. I opted for a larger plant in November to give it any early start and maybe ramp it up to an 8 inch pot after Christmas. Click image to enlarge...CULTIVAR.ORG is not about crappy minute images blogged from someone's camera phone. You deserve better.
Exochorda
EXOC001 - Exochorda racemosa 'Snow Mountain' - 5-6 ft. tall x 5-6 ft. wide, globose. Flowers 3-4cm wide, 5cm deep, very abundant, blooming from the bottom to the top of the plant, giving a more enduring, impressive show. Propagated easily with softwood stem cuttings unlike 'The Bride' which is somewhat difficult. USDA 4 hardy. US Plant Patent #25473 on May 28, 2015 to Herman Geers, Netherlands, a controlled cross 1994, selected in 1997 as the best seedling. Marketed in US by Blooming Easy, PPAF.  'The Pearl' has larger flowers but is much taller.
EXOC002 - Exochorda SNOW DAY® SURPRISE 'Niagara' - 36-48 in. tall x wide, a true dwarf, upright-mounded to loose spreading, yet compact. Flowers 3.3cm wide, inflor. to 5.2cm long, very abundant, mostly in large terminal racemes. Roots well from cuttings. US Plant Patent # 21665 to Herman Geers, cross of E. macrantha 'The Bride' and unnamed E. racemosa in 1994 assigned to Spring Meadow Nursery, widely sold by Proven Winners in 2015.
--end of OROC Data Sharing
Fagus

Jan De Langhe
Hatch's Cultivars of Woody Plants - 119 cultivars (New Ornamentals Society)


P. Spoelberch presentation to IDS - highly recommended gallery of photos of wild plants, garden subjects, and many rare cultivars. The comparative plant of 'Laciniata' vs. 'Quercifolia' is very educational. Can't say there are finer plates of 'Interrupta' and 'Luteovariegata' anywhere else on the web. Host by Arboretum Wespelaar.
G. Forgens presentation - just as fine and shows the famous Trompenberg hybrids including plates with the parent leaves and those of the resultant, selected clonal cultivar. Wow! These two papers in PDF are must have for any beech-lovers library.


FAGU001 Fagus grandifolia 'White Lightning' (Mark Weathington, HortScience) - paid access to cultivar release. There is also a photo on the JC Raulston Arboretum website of their new, dwarf and weeping cultivar of the native, American beech species: http://jcra.ncsu.edu/horticulture/our-plants/results-by-name-serial-number.php?serial=120165

FAGU002 Fagus grandifolia DIAMONDBACK™ (Ferncliff Cemetery)

FAGU003 - Fagus sylvatica 'Callista' - as 'Dawyckii' but slower, much denser, semi-dwarf, 2m tall in 10 years. Leaves typical green. hgeersnl, accessed 5.26.2015

FAGU004 - Fagus sylvatica 'Eugen' - a semi-dwarf form, often more spreading than typical species, thus may be wider than tall. Leaves with a distinct obtuse, more rounded apex. It is sometimes referred to as 'Fruticosa Eugen' (sophora.pl, accessed 5.31.2015) ,  in connection with a post-1959 Latin cultivar name for shrubby, dwarf forms called 'Fruticosa' (fruticose=shrubby in Latin). Thought to be of Czech origin.

FAGU005 - Fagus sylvatica 'Londal Kribbebuk' - very low contorted-weeper to spreading mound if grafted low, otherwise like a mix of 'Pendula' and 'Tortuosa' if grafted higher, a "cascading carpet" by one account.

FAGU006 -  Fagus sylvatica 'Sandrode' - sport of the linear-bladed 'Mercedes', also semi-dwarf, dense, compact, can be upright to ovoid, but blades saw-toothed or boldly dentate, more like true 'Laciniata' than 'Asplendifolia (ie. shallower incisions, symmetrical blade), also more undulate than 'Laciniata'. The name translate to "red sand", possiobly because of the red to yellow fall colors?

FAGU007 - Fagus sylvatica 'Tur' - leaves very large to 11cm long, richly textured (sunken veins), very dark purple, more so than either 'Spaethiana'. Hulsdonk.com, accessed 5.31.2015

-end of OROC Data Sharing

Registration List of Cultivar Names of Fagus L. by Wyman (PDF article, Arnoldia, Harvard University) - a bit datedfrom 1964 but this detailed checklist is the basis of our modern nomenclature

Cultivars of European Beech by Fincham (website, gallery) - very nice photos of common and rare cultivars

Registration List of Cultivar Names of Fagus L. by Wyman (PDF article, Arnoldia, Harvard University) - a bit datedfrom 1964 but this detailed checklist is the basis of our modern nomenclature



Variations of Fagus sylvatica by Hatch - Cool Plant Profiles (Youtube video, New Ornamentals Society, cultivar.org)




Your computer, tablet, phone, or book reader can have the latest cultivar encyclopedia for each genus in handy PDF form - the most complete cultivar references for more than 103 ornamental, landscape genera. CULTIVAR.ORG is a product of more than 35 years of work by leading horticultural taxonomist Larry Hatch and the hundreds of experts in the New Ornamentals Society and our experts partners around the world. We exceed your familiar plant manuals, horticultural society "complete" guides, and most websites by 3-20 times more cultivars and with much more specific, detailed data. For example, 159 Aucuba cultivars, 191 Astilbe, 274 Aquilegia, 109 Ajuga, 1032 Acer, 59 Abelia, 175 Aglaonema, and 103 Aesculus.

 Please click the logo above for details.

If you prefer to purchase volumes separately our Google Play Books Store has many of the same files for $7.20 to $20.00 each. CULTIVAR.ORG is however about 60% less expensive since you are mass-purchasing access at the Preferred Library Rate..

Fallopia
Farfugium 188 cultivars - we have spent many years collecting cultivars and studying Japanese literature, bringing you a huge reference on the many, diverse forms.

Plant Delights - Farfugium Page (nursery website) - best assortment in the US if not everywhere.
Fatsia
and
x Fatshedera


Fatsia japonica 'Murakumo Nishiki' and the similar (perhaps less veined or reticulated) CAMOUFLAGE™ from Monrovia.com offer two or three major tones of green to yellow in this wonderful house plant or USDA 7-10 woody plant. The Monrovia clone is offered here. Click image please.



Registrration Pending - Fatsia japonica CAMOUFLAGE™ - see above.
FATS001 – Fatsia japonica ‘Spilt Milk’ – glossy green, margined and splashed cream to white. Cistus.com, accessed 4.22.2015, their own selection
FATS002 – Fatsia polycarpa ‘Needham’s Lace’ – 10 ft. tall or larger. Leaves suffused silver over green, major veins much whiter. Edward Needham selection.
---end of OROC Data Sharing
Festuca


FEST001 - Festuca glauca BEYOND BLUE® (Concept Plants)
FEST002 - Festuca glauca 'Cool  as Ice' - 12 in. tall, 18 in flower. Leaves "selected for its lighter green spring emergence giving the plant a slight bi-color look", veyr rich icy blue in summer.  More heat tolerant than most clones. Origin: Intrinsic Perennial Garden, website, accessed 4.10.2015
Ficus
HITS (House, Interior, Tropical, Succulent) Plants by Hatch - 2013-15 Early Preview Edition (PDF ebook, 400+ pages leading to 1300 pages in 2017) - 84 cultivars, including modern images and historical scans of old articles and nursery ads describing our classic cultivars.



Plantscope.nl - many of the Dutch cultivars


FICU001 - Ficus afganistanica 'Silver Lyre' - 20 ft. tall x 10 ft. where fully cold hardy, very vigorous. Leaves deeplhy lobed, incised, "snowflake-shaped", silvery silvery-green to light silver (much greener in species typical). USDA 7b. Sean Hogan (cistus.com), accessed 4.22.2015.
Fittonia
Forsythia Manual of Woody Landscape Plants by Dirr (book, Amazon) - very useful evaluations of cultivars, many quite new, from one of the top experts

Hatch's Cultivars of Woody Plants - 104 cultivars (New Ornamentals Society)



FORS001 - Forsythia x intermedia MAGICAL® GOLD 'Kolgold' (Monrovia) - 3-5 ft. tall x 3-4 ft. wide. Flowers extra large, floriferous, covering nearly every stem of new and old wood, one of a few that bloom from both. Therefore useful as a long cut flowering spray. Leaves a rich green. Bred by Peter Kolster.

FORS002 - Forsythia x intemedia 'Nimbus' (Minier Nurseries) - compact (more so than parent 'Courtijau'), upright to outwarding spreading, vigorous (more than parent 'Courtijau'), freely branched, dense. Flowers numerous, longer blooming and also earlier than parent 'Couirtijau'. Phytophthora resistant. US Plant Patent #23838 on August 20, 2013 to Patrick Pineau, cross of 'Courtijau' x unknown male clone, 2004, selected 2006, assigned to Pepinieres Minier.
-end of OROC Data Sharing

Identification and Evaluation of Forsythia Germplasm Using Molecular Markers by Suh e al (PDF article, Springer, Genetic Resouces in Crop Evol.) - paid access

The Story of Forsythia by DeWolf and Hebb (PDF article, Arnoldia, Arnold Arboretum) - useful summary of the genus, it's exploration in the wild, breeding and ornamental development. Includes a cultivar checklist.

Registration Lists of Cultivar Names of Forsythias by Wyman (PDF article, Arnoldia, Harvard University) - The 1961 checklist which is the basis of modern treatments


Forsythia x intermedia 'Ford Freeway' is one of the better variegated golden-bells for sheer artistic merit. Of the more than 15 named variegated sports in this genus, many are real oddities, dogs, and pure collector's items. This one is not bold from any distance nor it very uniform for color or pattern but the myriad of designs is fascinating and makes a nice lesson on chimera formation. The old leaves fad to some lovely olive and lime shades, making a whole new style of painting. Click image.


Fothergilla
Manual of Woody Landscape Plants by Dirr (book, Amazon) - very useful evaluations of cultivars, many quite new, from one of the top experts



Clarifying Taxonomy and Nomenclature of Fothergilla Cultivars and Hybrids by Ranney and Lynch (PDF article, HortScience) - breakthrough article on cultivar parentage and affinity. Highly recommended. Fothergilla x intermedia is defined for documented hybrids and it's cultivars.

FOTH001 - Fothergilla gardenii 'Bill's True Dwarf' (Rare Find Nursery)
Fragaria -
Ornamentals


FRAG001 Fragaria x ananassa 'Toscana' won the Fleuroselect Star award for being a dual purpose or edible ornamental superior to older material. We've had rich pink flowers in the genus before, these being showy on the order of a mounding Potentilla for ornamentality, and in decades past it was claimed those pinkies had fine, luscious fruit. Well....in reality...not so much. The fruits were tiny, hardly sweet or yummy more than one or two bites a spring, and were not going to mass-top any pancakes, cakes, or ice cream any time soon. This is perhaps the first cultivar with all the glorious flower quantity and corolla color but with truly big, abundant, tasty berries. It has "genuine strawberry taste", medium-sized, conical, dark fruit (and that is rather new with showy, non-white flowers) and is also described as "multi-dimensional". It's an F1 cross, flowers 3-4cm wide, and can be mass-produced from seed. That is a breakthrough and we think this one just might have more than one purpose in all our gardens. Please click the image.
Franklinia
and
x Gordlinia
x Schlimlinia


FRAN001 - Franklinia alatamaha 'Ben's Best' (Rare Find Nursery)
--end of OROC Data Sharing

x Gordlinia grandiflora (Franklinia x Gordonia)


x Gordlinia grandiflora (Franklinia x Gordonia)
x Schlimlinia floribunda (Schima x Franklinia)
Fraxinus

Jan De Langhe
Hatch's Cultivars of Woody Plants - 243 cultivars (PDF book, New Ornamentals Society)

Checklist of Cultivars of European Ash by McArdle and Santamour (PDF article, Journal of Arboriculture)

Checklists of Cultivars of of North American Ash by Santamour and McArdle (PDF article, Journal of Arboriculture)



USDA - ARS - US National Arboretum - Dr. Olsen - Genetic Structure of Green Ash and the Establishment of Ex Situ Conservation
Fritillaria
The Fritillaria Group of The Alpine Garden Society (plant society website, special interest website)

Fritillaria Gallery by Pacific Bulb Society (plant society website, gallery) - the interface between cultivars and yet unnamed species variations are very close.
Fuchsia

European Garden Flora
Fuchsias: A Colour Guide by Bartlett (book, Amazon)

Fuchsias: The Complete Guide by Goulding (book, Amazon)

Fuchsias: The New Cultivars by Bartlet (book, Amazon)

1000 Fuchsias: A Color Guide by Nijhuis (book, Amazon)

Fuchsias: A Practice Guide by Nicholass (book, Amazon)

A Gardener's Guide to 500 Fuchsias by Nicholass (book, Amazon)

Flower Color in Fuchsia Cultivars by Nozzilillo (PDF article, Canadian Journal of Botany) - paid access


American Fuchsia Society Database (plant society website, database, ICRA)  - very useful as it not only has descriptions but origin history, RHS Colour Chart values for calyx and corolla, and parentage if known.

Interspecific Hybridization in Fuchsia by Talluri (Ph.D. dissertatrion, University of Auckland) - a followup on this work appears here.

Suntory Angel Earrings Series

New Fuchsia Varieties (Garden Time TV)


Fuchsia magellanica 'Hawkshead' (Monrovia Nursery, Dan Hinkley)

  1. http://www.fuchsias.net/ (over 300 cultivars)
  2. http://eggandigardens.com/
  3. http://brenlissaonlinenursery.com.au/
  4. http://www.victoriananursery.co.uk/Fuchsias/
  5. http://www.fuchsia.be/en/
  6. http://www.potashnursery.co.uk/acatalog/fuchsias.html
  7. http://lockyerfuchsias.co.uk/
  8. http://www.fuchsiaplants.co.uk/
  9. http://www.roualeynfuchsias.co.uk/
Gaillardia

GAIL001 - Gaillardia COMMOTION® MOXIE (Monrovia)
Gardenia
Hatch's Cultivars of Woody Plants - 49 cultivars (PDF book, New Ornamentals Society)


A Comparison of Gardenia augusta Cultivars Using Isozymes and RAPD Markers by Criley, Roh, et al. (PDF article, US Department of Agriculture)


G.j. JUBILATION™ (Southern Living Plants)


Gardenia jasminoides 'Cream Picotee' - 3-4 ft. tall x 2-3 ft. wide. Flowers semi-double, large, similar to 'Chuck Hayes'. Leaves "smallishg, shiny, green...both streaked and spotted creamy whites". Or, in: www.cistus.com, accessed 3.29.2016, their own intro.Gardenia jasminoides 'Cream Picotee' - 3-4 ft. tall x 2-3 ft. wide. Flowers semi-double, large, similar to 'Chuck Hayes'. Leaves "smallishg, shiny, green...both streaked and spotted creamy whites". Or, in: www.cistus.com, accessed 3.29.2016, their own intro.

Gentiana
The Genus Gentiana by Halda and Haldova (book, Amazon) - on August 3, 2013 there were just 2 used copies for $550.00 each and one new one for an entire $1000.00.

Selecta (nursery website) - three recent hybrids
Geranium
(true, hardy,
not
Pelargonium)

Hardy Geraniums by Yeo (book, Amazon) - amazing standard reference with attention to both taxonomy and practical garden issues. Very useful illustrations, photos, and identification of similar cultivars.

Hardy Geraniums (PDF, RHS Trial Report)

Geraniaceae.com (nursery website, reference catalog) - well over 200 taxa

Herbaceous Perennial Plants by Allan Armitage - a very popular treatise with lots of cultivar notes, identification of species information, and a broad general spectrum of information.

Geraniceae Group Booklist (society website)

RHS/AHS Encyclopedia of Perennials by Rice (book, Amazon)
Geum

European Garden Flora
Hatch's Perennials 1.0-3.0 - (PDF ebook, New Ornamentals Society)

National Collection of Geum in Brickwell Cottage Garden (NCCPC,gallery) - Sue Martin's reference collection.





GEUM001 Geum 'Sunkissed Lime' (Terra Nova Nurseries). Click image to enlarge. Abiove image not part of OROC Data Sharing.
GEUM002 Geum 'Alabama Slammer' (Intrinsic Perennial Gardens)
GEUM003 Geum 'Banana Daiquiri' (Intrinsic Perennial Gardens)
GEUM004 Geum 'Champagne' (Intrinsic Perennial Gardens)
GEUM005 Geum 'Cosmopolitan' (Intrinsic Perennial Gardens)
GEUM006 Geum 'Dark and Stormy' (Intrinsic Perennial Gardens)
GEUM007 Geum 'Gimlet' (Intrinsic Perennial Gardens)
GEUM008  Geum 'Limoncello' (Intrinsic Perennial Gardens)  
Ginkgo Manual of Woody Landscape Plants by Dirr (book, Amazon) - very useful evaluations of cultivars, many quite new, from one of the top experts

Hatch's Cultivars of Woody Plants - NEW REVISED TO 197 cultivars (New Ornamentals Society)


The Ginkgo Pages by Kwant (website, gallery) - this has been an internet classic for years, showing people the value of the web for understanding woody species and their cultivars. A very deep site that covers everything from science to art.

Checklist of Cultivated Ginkgo by Santamour, He, and McArdle (PDF article, cultivar checklist, Journal of Arboriculture) - a bit outdated now but this scholarly, detailed presentation of cultivar history remains a valuable document


GOLDEN COLONNADE®                  

Ginkgo biloba 'Yellow Mellow'


Genetic Relationships of Ornamental Cultivars of Ginkgo biloba Analyzed by AFLP Techniques by Wang, et. al (PDF article, Acta Genetica Sinica) - an interesting article that costs about $32 to download. This might be a game changing article.



Ginkgo biloba 'Jagged Jade' - leaves thicker than parent 'Jade Butterfly' (sport of) and with a jagged, irregular sawooth margin of irregular sizes, perhaps 25-45 teeth per blade. So: www.mrginkgo.com, accessed 5.16.2016

Ginkgo biloba 'All Gold' - leaves golden-yellow in spring, summer, and more so in fall, can burn in sun. In: Brent Markus per Mesterhazy, Conifer Treasury, accessed 5.21.2016

Ginkgo biloba 'Snow Cloud' - leaves heavily suffused yellow over most of the blade in spring and into summer, unlike most summer-gold ginkgos this one has a cloudy, creamy or whitish upper leaf margin, some leaves quite a pale yellowish-white.  In: www.coniferkingdom.com, accessed 5.22.2016
Gladiolus
Amazon books Gladiolus book page

The Gladiolus: It's History, Cultivation, and Exhibition by Honywood (book, Barnes and Noble)

Glad-DB: NOS Gladiolus Checklist within NODgeo (XLS spreadsheet, database, plant society) - 630 cultivars that can be selected by flower color, flower mark/center pattern, floral undulation, name, etc. This XLS file can be exported to nearly any database Order the NODgeo package and this file is included.

North American Gladiolus Council - International Registry (plant society website, ICRA) - in July 2013 they have on offer 2008 to 2012 registrations.

Gladiolus: A Practical Treatise by Crawford (PDF ebook, Google Books) - a little known 1911 study which provides great insights on the genus' evolution in gardens. This is a solid horticultural ebook accession for your library.

Cohen, A. 1991. Miniature Gladiolus Cultivars Bred for Winter Flowering. HortScience 26(2): 216-218.
Gleditsia
GLED001 - STREET KEEPER® 'Draves' (streetkeeper.net) - 45 ft. tall x 18-20 ft. wide (50 years), columnar to narrowly ovoid, central leader dominant, stong crotch angles, reminds us of the old 'Elegantissima' but denser, narrower, suitable for larger city streets with half or less than normal spread. Leaves dark green, more textured, yellow in fall. No fruit seen in 50 years. US Plant Patent #21698, Tom Draves, found near Buffalo, New York from a notable tree.
Gordonia
GORD01 - Gordonia lasianthus 'Swampy' - habit more vigorous. More cold hardy, selected from near Aiken, South Carolina, a more northern range than some nursery stock. Selected by Chuck Weeks, former employee with Nurcar.com, accessed April 2013.
Grevillea
List of Registered Cultivars Derived from Australian Native Flora by Australian Cultivar Registration Authority (ICRA, cultivar register, ACRA, Australian National Botanic Gardens) - many of the new cultivbars described in rich retail
Gypsophila
GYPS001 - Gypsophila repens 'Red Neck' (Edelweiss Gardens), their own introduction
Halesia

Original Cultivar.org key by Larry Hatch


HALE001 - Halesia carolina CRUSHED VELVET™ 'JFS-PN2Legacy' (J.F. Schmidt) - 20 ft. tall x 15 ft. wide, ovoid, more compact and slightlly more narrow, finer textured branching. Leaves rich bluish-green, smaller dimensions,  textured, and waxy, hence the trademarked name.
Hamamelis
Witch Hazels by Lane (RHS, horticultural monograph, book, Anazon) - the leading horticultural monograph that will inspire anyone even a little interested in this genus.

Hatch's Cultivars of Woody Plants -
 

Arboretum Kalmthout Geregistreerde namen (ICRA, cultivar register, XLS spreadsheets)

Hamamelis_cultivar_names_checklist_2014 from Arboretum Kalmthout



HAMA001 Hamamelis 'Foxy Lady' - flower tepals vark ruby red to dark violet-red, one of the darkest reds known in the genus (May 2015). Selected by Chris Lane.

HAMA002 Hamamelis virginiana 'Lemon Lime' (Rare Find Nurseries) - leaves very finely striped, speckled, and thinnly sectored in typical green, lime green, chartreuse and light yellow, about 50% chimera and thus highly colorful.

HAMA003 Hamamelis vernalis ORANGE SUNRISE™ (Song Sparrow Nursery) - 5-6 ft. tall (10 years), flowers abundant, very fragrant, tepals orangish-gopld, calyx a contrasting dark red. Leaves in dark red shades in fall. Roy Klehm selection.

HAMA004 Hamamelis GRAPE FIZZ 'KLMNN'  (Song Sparrow Nursery) - 5 ft. tall x wide (1o years). Flower tepals an unusual lavender-purple. Leaves with gold colors in fall. Roy Klehm selection
--end of OROC Data Sharing
Haworthia



Hebe
Hebes: An Guide to Species, Hybrids, and Allied Genera by Metcalf (book, Amazon) - the current standard monograph.

International Register of Hebe Cultivars by Metcalf - 800 cultivars



Hebe Society - Hebes A to Z (plant society website, gallery) - an outstanding contribution to knowledge of the genus

Copyright 2013, 2014, 2015 Laurence C. Hatch. All Rights Reserved.
Hedera Ivyfile by Hatch - 450+ cultivars - 64 megabytes of content with high-res digital images, historical scans, original detailed descriptions, nomenclatural discussions, and origins. Lots of original content and most of Hibberd's old plates included. (PDF ebook, New Ornamentals Society, Taxonomic Computer Research) - $9.00 PDF digital download
Part I-
Part II -


The Ivy Book by Suzanne Pierot (book, Amazon) - Ms. Pierot's book was the first 20th century monograph on the genus and influenced a half century of horticultursts. 

American Ivy Society - journal, plant sources, chapters, Ivy of the Year awards, (website)

AIS Summer 2003 Journal


The New Ornamentals Society has studied Hedera helix cultivars for more than 20 years and our IvyFile has more than 400 cultivars. This free Youtube shows some of our favorite and more interesting cultivars. Click image to play.
 
Efeu-ev (website, cultivar database) - a very monumnental compilation of cultivars and very likely the most complete ever. British and American ivy collectors will find a bewildering number of new and unfamiliar clones described and imaged to a high standard.

Fibrex Nurseries - very much the best online nursery website for cultivars (website)

The Ivy: A Monograph by Shirley Hibberd (PDF ebook from Google Books) - the first com,plete monograph, lots of detail, plates, cultivar comparisons, and history. He renamed alot of stuff which is controversial and revised in modern times.

The Gardners Guide to Growing Ivies by Peter Roses (book, Amazon , new and used)

Exotica 4 by Graf (book, Amazon) - lots of detail on cultivars even if mostly in black and white. Detailed descriptions here form the basis of much modern ivy literature
Hedychium
'Ramata' (dwarf, variegated)
Helenium
HELE001 Helenium autumnale MARIACHI™ Series (Wayside Gardens)
HELE002 Helenium 'Gay-go-round' (RHS, Nomenclatural Standard)
--end of OROC Data Sharing

Updated 5.30.2016

http://www.lejardindesophie.net/liste%20des%20plantes/dh/helencultiv.htm (not sure if this is a collection or a information site but it definately is loaded full of cultivar data)


Sampford Shrubs, Devon, UK, a large collection with nice reference material - very useful
Helianthus

Flora of North America
Coming later this year....send your annual sunflower cultivar data ornamentals @ lycos.com


Helianthus annuus 'Solar Flare' (Burpee)
Heliconia
Heliconia: An Identification Guide by Berry and Kress (book, Amazon) - 200 taxa - a different sort of cultivar guide that integrates species and hybrid cultivar ID into a coherant approach. Very solid work.

Heliconia Society International - 2005 checkllist (ICRA, plant society website)
Helleborus

European Garden Flora

Hellebores: A Comprehensive Guide by Burnell, Tyler, and Tyler (book, Amazon)

Hellebores: A Comprehensive Guide by Burnell, Tyler, and Tyler (book,, nook)

A Gardener's Guide to Growing Hellebores by Rice (book, Amazon)

Hellebores by Ahlburg (book, Amazon)

Hellebores by Matthew (book, Amazon)

A Primer on the Genus Helleborus by Avent (website article, Plant Delights Nursery)

Hatch's Perennials 1.0-3.0 - 327 cultivars (New Ornamentals Society) - free access. Please write us at ornamentals@lycos.com to add your commercially available, named cultivars
Updated 5.30.2016


FLUFFY RUFFLES Series

Hellebore Hurrah at Phoenix Perennials

HELL001  Helleborus x ballardiae 'Rauston Remembered' (Plant Delights, new for 2015) - 14 in. tall. Stems and petioles red, showy. Leaves veined silver to greenish-silver, showy. Flowers white tinged light pink, very florioferous. Pine Knot Farms from a plant given to the JC Raulston Arboretum, named now for it's late founder. Jonathan Nyberg, Curator of the Winter Garden at JCRA noticed the foliage remained in good condition after one hard winter when other clones and seedlings had much damage. After permissions, this superior clone was tissue cultured and distributed by Plant Delights and Pine Knot Farms c. 2014.
Hemerocallis

Flora of China


American Hemerocallis Society - Cultivar Database (plant society website, cultivar database, ICRA)
Hemigraphis

HEMI001 - Hemigraphis repanda 'Razor Leaf' is a house plant sold all over but under other species' names. Nor is this the basic species which often has a leaf 2-3x wider (at least outdoors) and even our two year old plants indoors maintained this lovely thin blade with no tendencies to be species typical. We saw it online from a store calling it "razor leaf plant" and after determining that was not an established species common name, decided it would make a suitable clonal name. The luminous violet-lavender leaf backs and the very dark fronts are hard to photograph in any light. We finally got this decent image using a dark green file folder, a flatbed scanner, and a color standardization card to provide context and calibration. Click image. This image is not part of OROC Data Sharing.
Heuchera
and
x Heucherella

The following all are pending registrations
Heuchera 'Carnival Black Olive'
Heuchera 'Carnival Candy Apple'
Heuchera 'Carnival Coconunt'
Heuchera 'Carnival Coffee Bean'
Hecuhera 'Carnival Fall Festival'
Heuchera 'Carnival Limeade'
Heuchera 'Carnival Peach Parfait'
Heuchera 'Carnival Rose Granita'
Hecuhera 'Carnival Silver Streak'
Heuchera 'Carnival Plum Crazy'
Heuchera 'Carnival Watermelon'
Heuchera 'Bella Notte'
Heuchera 'Black Taffeta'
Heuchera 'Cajun Fire'
Heuchera 'Cherry Cola'
Heuchera 'Creole Nights'
Heuchera 'Delta Dawn'
Heuchera 'Fire Alarm'
Heuchera 'Forever Purple'
Heuchera 'Glitter'
Heuchera 'Little Ruffles'
Heuchera 'Midnight Ruffles'
Heuchera 'Red Lightning'
Heuchera 'Zipper'

Updated 5.30.2016
Hibiscus -
Hardy -
Herbaceous -

Moscheutos,
coccineus,
laevis,
palustris,
grandiflorus,
and their
hybrids


Herbaceous Perennial Plants by Allan Armitage - a very popular treatise with lots of cultivar notes, identification of species information, and a broad general spectrum of information.

Plant Evaluation Notes by Hawke (PDF article, Chicago Botanic Garden)


Texas A&M AgriLife Breeding Program with Dr. Malinowski (university video, cultivar breeding)

Fleming Flower Fields (nursery website, cultivar breeding) - wonderful galleries and discussions from the leading herbaceous or low shrub breeders in the genus for the last 40 years.

Texas A&M Breeding Program (PDF article, university website) - they are doing work in new flower colors such as the first true blue ('Blue Angel') and new petals shapes and forms. 'Blue Angel' here is hardy and herbaceous, not the two other clones of this name belonging to H. syriacus and H. rosa-sinensis.

Hatch's Perennials 1.0-3.0 - 164 cultivars + more botanical taxa (PDF ebook, New Ornamentals Society)

Hibiscus -
Hardy -
Woody -
Syriacus,
sinosyriacus,
paramutabilis,
and hybrids

HIbiscus syriacus: A List of Cultivars in Collections and Print by Beth Matney - a 1999 checklist and while a bit outdated (missing 25+ clones) the detaIl of descripotions and documented citations are remarkable. Most reference books don't have a fraction of these clones and she managed to include many rare clones from Korea, Belgium, and elsewhere. Highly recommended.



Rose-of-sharon Rediscovered by Tim Wood (nursery website) - a very informative article.

US National Arboretum-USDA release by Egolf (plant release, PDF document) - 'Minerva', 'Helene', and 'Aphrodite' explained in the original, primary document. The HTML intro of 'Diana' is similar.
Hibiscus -
Tender/Tropical
including
Rosa-sinensis,
other species,
and hybrids




'USS Arizona' + USS California'

Hibiscus Cultivar Register by Australian Hibiscus Society (plant society website) - Very nice file and with lots of detail. But when accessed on August 9, 2013 it was only updated to 2008.

World of Hibiscus (gallery) - an outstanding photographic collection

Ornamental Hibiscus in Hawaii by Wilcox and Holt (PDF ebook, Google Books) - an essential, foundational reading on the tropical types from 1913 and done under cooperation with the USDA. A solid old work that every digital horticultural library should not be without. The plates of old clones are pricess and really it serves as the first great checklist of garden varieties.
Hippeastrum
Hippeastrum: The Gardener's Amaryllis by Read (book, Amazon)

NODgeo - NOS Hippeastrum Trial Report (plant society article, PDF, New Ornamentals Society)

Bulbsociety.org checklist (plant society)


'Rio' + 'Sampa' + 'Bahia'


Hippeastreum 'Rilona' from our New Ornamentals Society 2011 trials which lasted until 2013 with dozens of cultivars evaluated for better or worse. I recall the day I laid down this massive, pollen-soaked flower on my flatbed scanner with two quarters and hoped for the best. Attempt two went very well and while the flatbeds tend to radiate alot of light in odd ways, this coloration is very true to form and due to the crystals in these petals, likely better than an indoor flash from any of our Nikons. Thbis melon and cream beauty just shines in real life and it's size is nearly beyond belief for this genus or any other. Click image please.
Homalomena
H. 'Selby', 'Perma Press', 'Emerald Gem' (Agristarts, nursery website, with color images)

Hosta Barnes and Noble Hosta book page (many titles)


Free encyclopedia of 1000 cultivars. Download here or direct to your device from Google Play (still free)


American Hosta Society - Hosta Register (ICRA, plant society website) - numerous supplements including the main, large Silver Book from 1969-1991

Hosta Paradise Database (website, database) - 2947 taxa and 11951 photos, claiming to be the largest Hosta database and with the most versatile search engine. I am declaring this site and AHS Register a tie until someone has hours to count and verify each one.

My Hostas (cultivar database, website) - another contender for biggest Hosta database, including 2000 sports

Tony's Top Ten Hosta Myths by Avent (website article, American Hosta Society Journal)

Hosta Library (special interest website, gallery) - a favorite reference well before the AHS got their act together and still valuable for unique articles on speices concepts, history, nomenclature, etc.


* Chelsea Flower Show 2012 (gardenvideos.com, in Dutch but cultivar names are clearly shown)
* The Future of Hosta with Bob Solberg - a leading breeder's view of what is new and is about to the hit the industry


KIller Hosta (Larry Hatch, Cultivar.org, New Ornamentals Society)

The Colour Encyclopedia of Hostas by Grenfell and Shadrack (preview only)

Hostas by Barnett (2004)(preview only)



  1. http://www.plantdelights.com
  2. https://www.greenmountainhosta.com/
  3. http://www.aahostas.com/
  4. https://www.hostahosta.com/
  5. http://www.hostasdirect.com/
  6. http://www.landofthegiantshostafarm.com/
  7. http://www.songsparrow.com/
  8. http://www.savorysgardens.com/
  9. http://www.hostapatch.com/
  10. http://naylorcreek.com/
Hoya
The Hoya Handbook by Kloppenburg and Wayman (book, Amazon) - this 1993 treatise is sometimes out of stock but is well worth finding.

The Book of Hoyas: a Book of Picture by Kloppenburg and Wayman (book, Amazon) - a 2007 printed gallery, usually $50-130

HITS:


International Hoya Association (plant society website)

Gardino Nursery (nursery website) - a solid reference to botrh species and cultivars. When we added this link they had 95 taxa on offer for mailorder sale.

ebay offers many of the newest cultivars, unnamed rare variegates, unnamed species (IML and EPC numbers), and occasionally some deals on common cultivars. We and others have learned from these auction websites.

Hyacinthus
NODgeo by Hatch (PDF ebook, New Ornamentals Society)


KAVB Dutch cultivar register - the official database of bulb cultivars, loaded with detailed desciptions, history and origins.

Hydrangea
anomala,
arborescens,
aspera,
heteromala,
involucrata


Jan De Langhe
Hydrangeas for American Gardens by Dirr (book, Amazon)

Hatch's Cultivars of Woody Plants (PDF ebook, New Ornamentals Society)



Hydrangea aspera PLUM PASSION® (Monrovia). Click the logo below for Dan Hinkley's images and discussion on it.
Hydrangea
macrophylla
and
H. serrata

Complete Hydrangeas by Church (book, Amazon)

Hydrangeas: Species and Cultivars by Mallet (book, Amazon) - not cheap at $90-200 but you need this to be a Hydrangea expert and insider - or have a worldclass woody library.

Encyclopedia of Hydrangeas by van Gelderen and van Gelderen (book, Amazon)

The Hydrangeas by Haworth-Booth (book, Amazon) - the classic monograph, now dated but very valuable and you can build your library for $5-15 a copy.

Part I -
Part II -

Simple Sequence Repeat Marker Analysis of Genetic Relationships Within Hydrangea macrophylla by Reed and Rinehart (PDF article, J. Amer. Soc. Hort. Sci.) - 114 taxa




H.m. BLARNEY STONE™ (Rare Find) - a true beauty among variegated clones, wide chartreuse margin about 45% surface!

International Registration for Cultivar Names for Hydrangea 2006-2011 by H. Bertrand.

Remontant Flowering Potential of Ten Hydrangea macrophylla Cultivars by Adkins and Dirr (PDF article, HortScience)

Flowering Performance of 21 Hydrangea macrophylla cultivars by Reed (PDF article, USDA, US National Arboretum, HRII)
Hydrangea
paniculata

Hydrangeas for American Gardens by Dirr (book, Amazon)



RHS Hydrangea paniculata Bulletin (PDF, plant society, cultivar trials, evaluation) - 40 cultivars covered in much detail

New cultivars from Proven Winners (several videos)


LITTLE LIME®
Hydrangea
quercifolia





'Munchkin' and 'Ruby Slippers'
Hypericum

Flora of China



HYPE001 - Hypericum calycinum GOLDEN RULE 'NCHCI' - photo courtesy of and copyright owned by Dr. Tom Ranney, NC State University. Please click image to enlarge. Above
image is not part of OROC Data Sharing.


HYPE002 - Hypericum BLUE VELVET™ (Hawksridge Farms)

HYPE003 - Hypericum kalmianum COBALT-N-GOLD™ 'PIIHYP-I' - 2-3 ft. tall x 4-5 ft. wide, compact but not overly dense, somewhat open and natural-looking branch architecture,  mounding, not splaying out or getting rough with age, not producing open or unkempt centers.  Bark cinnamon-brown, exfoliating, semi-showy. Leaves silvery-green, effectively bluish-green as the trademarked name implies, fall tones yelow, red, and orange. Flowers bright yellow, small but numerous heads at the apices, bloom period long as in late spring to earyy summer.  US Patent #25318 on Feb. 24, 2015 to Joshua Kardos and Dr. Michael Dirr of Georgia, USA, as open pollinated seedling. assigned to plantintroductions.com.

PENDING - Hypericum androsaemum 'Matisse', 'Pollock', and 'Picasso' (Dr. Tom Ranney, North Carolina State University)

HYPE004 - Hypericum kalmianum BLUES FESTIVAL™ 'SMHKBF'- 24-36 in. tall x 24-48 in. wide. Leaves ellliptic, distinctly bluish-green to - silvery-blue.Flowers to 1 in. wide, single, very long bloom period.


HYPE005 - Hypericum calycinum 'Fiesta' . .http://www.plantdelights.com, accessed 1.16.2016, new for 2016
--end OF OROC Data Sharing

Updated 5.8.2016


Olsen, R., Ranney, T. and D. Werner. 2006. Fertility and inheritance of variegated and purple foliage across a polyploid series in Hypericum androsaemum L.J. Amer. Soc. Hort. Sci. 131(6): 725-730.

Hatch's Perennials 2016-2017 is the largest and most complete encyclopedia of hardy herbaceous perennial cultivars ever produced and the newest edition has just been released. Here's what you get:

  • MORE DATA: more cultivars than everywhere else, more than 2600 PDF 8x10 in. pages and over 380 megabytes. No print publisher would every comprehend sending out this much information. This is only doable and affordable as digital ebooks.
  • AUTHORITATIVE: Horticultural taxonomist Larry Hatch (BS Cornell, MS NC State) has worked on this and collected perennials for more than 35 years and had more than two decades of expert advice from the New Ornamentals Society. 
  • VERSATILE: you can put the entire system on your phone, tablet, laptop, desktop, ebook reader, and other device - anything that reads PDF files. More than 480 devices are supported.
  • EVERYWHERE YOU GO: you have this data wherever you carry your devices in the garden, nursery, botanical garden, classroom, lab, or your client's office. 
  • DUAL MENU: You have cultivar.org using the icon listed above and you also get a separate menu page, both on the web with fast loading.
  • YOU OWN IT FOREVER IN SECURE DIGITAL FORM: If you download the PDF files on your own devices, you have them forever as long as you keep the password (please do). If you decide to purchase updates from our 2018 and future editions, it's up to you to decide when and if you do.
  • ORIGINAL AND EXCLUSIVE: unlike some popular perennial books this is not a crude "compilation" with the pooled ignorance of random interest users unfiltered by experts. HP2016-17 contains decades of original real garden, literature, nursery catalog, and plant trials research. Thousands of observations and data points are exclusive.
  • FREE UPDATES: does your old perennial book author and publishers send you free updates and supplements every month or so? We're guessing...no! We will. You get all the new data and updated files through 2017 at no extra charge. Your subscription lasts that long.
  • CULTIVAR SPECIFIC DATA: we are very detailed on individual cultivar heights, habit, color, origins, history, leaf traits, and more. 
  • AMAZING, SCREEN-WIDE HIGH-RES IMAGES: from the very beginning Mr. Hatch insisted we publish huge 900 pixel wide images with clarity and lots of digital SLR detail. He even told nurseries and breeders their promotional images were frankly cr@p and modern public relations and scientific documentation (both) deserved better. Today our standard is 1250 pixels wide. No print book publisher could give hundreds of these big, ultra high quality pictures for less than hundreds of dollars in coffee table type books. We do...starting at just $59.00
  • OROC SUPPORT: not only does this work plug into all the new perennial cultivar registrations of the Open Registration of Cultivars project but you subscription directly funds that project. There is absolutely no other organization actively and assertively cataloging new hardy plant cultivars with peer-reviewed standards.
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This subcription is 100% digital delivery as PDF files and there are no mailed or printed materials. You can view and download the files from two different menu, a standalone page on y click any HP 2016-2017 logo on the three GENUS CENTRAL @ CULTVIAR.ORG pages under each genus.

You will receive a download website page address/URL and password by email, usually within 48 hours of your order, to access your new resource. THIS IS NOT A PRINTED BOOK and we do not mail any content. This is a 100% digital service.
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Genera I to O: Genera P to Z




Copyright 2014, 2015, 20916 Laurence C. Hatch. All Rights Reserved.
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