Hatch's Interior Plants (HIP) has been updated and expanded. It is now being printed as Houseplant Cultivars (HPC). As many of you requested, the content is becoming available in ebook, paperback, and hardback editions for use in libraries and locations where print versions are more effective. As many of you know, new cultivar names are not nomenclaturally valid until in distributed print form, meaning digital files cannot be cited and are ignored by some experts. It is essential that many names be validated with print formats and we intend to do this is an ambitious and professional manner. To give a nomenclature standard and be a source of authority these changes were necessary. This is not a cheap nor easy adventure but one that the industry, collectors, and horticulture in general both deserves and demands.

Volume I
191 different cultivars of Crassula, 132 Dracaena, 73 Epipremnum (exclusive of Scindapsus), 22 Maranta, several new Hedera, Mammillaria, 242 Syngonium, 20 Monstera, 113 Peperomia, 17 Portulacaria afra, 211 Sansevieria, and 199 Philodendron cultivars.

Page count/size: 280 pages, varies with format, generally 8.5 x 11 in.

Publication Date: September 12, 2022

Volume II
66 different cultivars of Acalypha, 101 Aeonium, 249 Aglaonema, 128 Alocasia, 87 Alternanthera, ornamental Ananas, 38 Brassaia, 70 Calathea, 19 Callisia, 4 Ceropegia,  Cereus,  28 Chlorophytum, Ctenanthe, Duranta, Fatsia/x Fatshedera, 160+Haworthia, Hemigraphis, Iresine, Microsorum, 169 Nephrolepis, 2 Pachira, 28 Pilea, Piper, 58 Plectranthus, 48 Polyscias, 2 Procris (Pellionia), 15 Pseuderanthemum, Pteris, Rhoeo.

Page count: 274, varies with format.

Publication Date: October 8, 2022

Volume III
Adiantum, Clivia, Clusia, Codiaeum, Dieffenbachia, Echeveria, Euphorbia, Ficus, Fittonia, Gardenia, Hoya, Kalanchoe,  Kohleria, (subject to change with final edit for size)

Page count: TBA, varies with format.

Publication Date: early 2023
Send us your new cultivars for inclusion in the manuscript

Paperback 8.5 x 11" (premium color paper)      
Price: $89.00 + shipping
Paperback 8.5 x 11" (premium color paper)
Price: $89.00 + shipping

Paperback 8.5 x 11" (premium color paper)

PDF Digital (ebook) of Houseplant Cultivars only is now just $89.00 for Volume I and II adding Volume III when released. We do not incur the substantial color printing costs, Amazon's retail markup, nor shipping costs with this format so the savings are now available direct from our office. This discount is not offered by Kindle, Google or other booksellers offering this series or any volumes from it, only from this page and offer here. The offer may be withdrawn at any time. To receive this discount email ornamentals@lycos,.com with "HPC Digital" in the subject line. We will invoice you through Paypal. You will receive an online menu to access each volume as well as a password you must retain to continue access.
Hardback (premium color paper)
Price: $139.00
Print to order only - email to request your order
Hardback (premium color paper)
Price: $139.00
Print to order only - email to request your order
Hardback (premium color paper)
Price: $139.00

Volume IV
Caladium, Cordyline, Gasteria, Mandevilla, Musa, Tradescantia, updates to previous volumes including new cultivar registrations
(subject to change)

Page count: TBA, varies with format.

Publication Date: est. March 5, 2023

Send us your new cultivars before February 15, 2023
Volume V
Agave, Asphidistra, Rohdea, Aloe. Amorphophallus  (subject to change)

Page count: TBA, varies with format.

Publication Date: 2023

Volume VI
Coleus Part A, about half or 800 cultivars from the current Internatioanal Register of Coleus Cultivars, published in cooperation with the International Coleus Society. It is being revised in 2022 and early 2023 to add the latest cultivars and images.

Page count: TBA, varies with format.

Publication Date: 2023
Paperback (premium color paper)
Price: $89.00
Paperback (premium color paper)
Price: $89.00
Paperback (premium color paper)
Price: $89.00
Hardback (premium color paper)
Price: $139.00
Hardback (premium color paper)
Price: $139.00
Hardback (premium color paper)
Price: $139.00

Volume VII
700+ cultivars of Hedera helix. Cultivars of other Hedera species will be in another volume due to space considerations. This is based on our Cultivars of Woody Plants Hedera helix revision of 2021 and has been expanded, amended, corrected, and improved for 2022-23. Seven Hedera collectors and experts contributed descriptions, new cultivars, and images to this work which we guarantee will be an vast improvement on existing ivy books.

Page count: TBA, varies with format.

Publication Date: 2023

Volume VIII
Genera TBA

Page count: TBA, varies with format.

Publication Date: 2023-24

Volume IX
Genera TBA

Page count: TBA, varies with format.

Publication Date: 2023-24
Paperback (premium color paper)
Price: $89.00
Paperback (premium color paper)
Price: $89.00
Paperback (premium color paper)
Price: $89.00
Price: Free - view cultivars A to L now
Hardback (premium color paper)
Price: $139.00
Hardback (premium color paper)
Price: $139.00
Hardback (premium color paper)
Price: $139.00

  Email us at with "Houseplant Cultivars" in the subject line. We have over 40 products so it's important to specify this series  vs. "your book".

New Houseplant Cultivar Registration:
1. You must have originated (found, discovered, bred) the plant to register it or have permission to market and name it from the originator.  If the originator is unknown and you've made every effort to find their person or organization, we will provisionally register the plants, assuming no patent searches or valid documentation finds the true owner. We  cannot register new wild species because there is already an approved botanical, academic process for naming true wild species and subspecies.
2. The cultivar does not have to be strictly "new" but can be a clarification of existing nomenclature with confused clones or just something missing from tradtional houseplant guides. If it needs to be defined, redefined, or clarified for the trade, it's part of this project.
3. The new cultivar must be available commercially by a least one source in the world (website, auction site, nursery, botanic garden). Your ebay and Etsy store count. We will not register a new sport that is not yet propagated, commercially sold, or for "general interest" as one well-meaning person told us. Cultivars names are for the trade, for commerce, and not to catalog our personal, private collections and unique sports. Please give those accession numbers until they merit being sold. Please include a link to a source so we may include it. Unlike some ICRA or academic registers we actually want people to find and buy your plant and do not have a ban on commercial references. This is free promtion to thousands of eager plant collectors and industry leaders.
4. We do not register Begonia, Saintpaulia and other gesneriads, Bromeliads, carnivorous plants, waterlilies, Tradescantia, Fuchsia, Hibiscus, orchids, and any non-ornamental plants as there are existing registrars who ably handle those cultivars. We will help you reach them if you need a link or two.
5. You must include a full description of the plant with measurements of height/width, leaves, flowers, and colors when possible. Include history and origination data. A link to a retail or wholesale nursery source is welcome as are any informational pages on the web. 
6. Email to with "OROC" in the subject line. Please include a JPG image if you can and any copyright terms you wish us to include for that image. If you wish to donate the image to this project, please note that as well.
7. We will contact you back with your registration information, estimated date of publication, and any additional information that is required.
8. There is no charge for this service and we will fully publish your cultivar name in a manner that makes it valid under the nomenclatrual code. Initially registrations may appear in digital format here on this or related pages.
9. This registration (nor any other cultivar registration) provides no (zero) legal rights such as patent protection, plant breeders rights, or registered trademark of names. Those are separate processes operated only by governmental agencies. This process of printed publication does make your name nomenclaturally valid and established as would peer-reviewed, academic literature. Your cultivar registration may include an unregistered trademark (no legal stuff required) such as Plantus communis 'Smithpink' PINK QUEEN™ but will only publish a registered trademark if you provide documentation from your country's trademark authority that the name has been registered and is active.
10. Our cultivar registration is under the auspices of the Open Registration Of Cultivars (OROC) project and under their rules. OROC since 2017 has documented more than 400 new woody plants, 300 perennials, and  over 50 interior, tropical plants. OROC is a consortium of experts worldwide devoted to making up for the lack of cultivar registration by the other ICRA processes. No one was doing it or doing it right (except for a few genera and families named above) so OROC decided to fund it and make it happen.
11. Thank you for helping make houseplant nomenclature standardized worldwide and more stable!

HOUSEPLANT CULTIVARS has already registered with OROC and described the following new cultivars:
Descriptions are found in the main volumes of the series. Newest registrations appear in red at the bottom of this list.

PEPE001 - Peperomia albovittata 'Piccolo Banda'.

PEPE002 - Peperomia 'Peppermill'
PEPE003 - Peperomia albovittata 'Rana Verde'
PEPE004 - Peperomia angulata 'Rocca Schura'
PEPE005- Peperomia angulata 'Rocca Verde'
PEPE006 - Peperomia argyreia 'Diamond Nebula'
PEPE007 - Peperomia argyreia 'Harmony's Gold Dust Woman'
PEPE008 - Peperomia caperata 'Alricos Ripple'
PEPE009 - Peperomia (caperata x 'Eden Rosso') 'Brasilia'
PEPE010 - Peperomia caperata 'Harmony's Midnight Wave'
PEPE011 - Peperomia (caperata x 'Eden Rossa') 'Mendoza'
PEPE012 - Peperomia caperata 'Steve's Leaves Chameleon'
HEDE001 - Hedera helix 'Nilita'
HEDE002 - Hedera helix 'Yarik'
HEDE003 - Hedera helix 'Papa Yena'
HEDE004 - Hedera helix 'Eny'
HEDE005 - Hedera helix 'Sasha'
HEDE006 - Hedera helix ‘Tattoo Ripple’
HEDE007 - Hedera helix ’Minisonja’
HEDE008 - Hedera maroccana ‘Neon’ (popularly H. algeriensis)
HEDE009 - Hedera helix 'Andreas' 
HEDE010 - Hedera helix 'Konstanin Eftov'
HEDE011 - Hedera helix 'Laurence'
HEDE012 - Hedera helix 'Darth Vader'
HEDE013 - Hedera helix 'Petrovich'
HEDE014 - Hedera helix 'Bizar'.
HEDE015 - Hedera maroccana 'Nabar-Nabar'
HEDE016 - Hedera maroccana 'Ederalai'
HEDE017 - Hedera helix 'Frisé'
HEDE018 - Hedera helix 'Troll Pananché'
HEDE019 - Hedera helix 'Irina'
HEDE020 - Hedera helix 'Hulk'
HEDE021 - Hedera helix [Green Ripple Group] 'Cary Green'
HEDE022 - Hedera helix 'Jake'  
HEDE023 - Hedera helix [Birdsfoot Group] 'Courage'
HEDE024 - Hedera helix 'Sally'
HEDE025 - Hedera helix 'Seabreeze'
HEDE026 - Hedera helix 'Ballet'
SENE001 - Senecio articulatus 'Candlelight'
PILE001 - Pilea cadierei 'Cream Theme'
PILE002 - Pilea (aff. hitchcockii)  'Dark Mystery'
PILE003 - Pilea libanensis 'Silver Sprinkles'
PLEC001 -  Plectranthus ciliatus 'Easy Gold' ('Lemon', 'Lemon Gold')
PLEC002 - Plectranthus ciliatus 'Troy's Gold' ('Lemon Lime', 'Limelight')
PORTUL001 - Portulacaria afra 'Golden Moments'
PORTUL002 - Portulacaria afra 'Lilliput'
ASPL001 - Asplenium nidus 'Hurricane'
SANS001 - Sansevieria trifasciata 'Night Owl'
KALA001 - Kalanchoe (longiflora or sexangularis?) 'Fire Rainbow' (this now has a US Patent)
ACAL001 - Acalypha wilkesiana 'Ceylon Lime'
AEON001 - Aeonium decorum 'Triple Crest'
CALL001 - Callisia repens 'Copper Jewel' ('Aurea', 'Gold', 'Bronze', "Gold form" etc.)
HEDE027 - Hedera helix 'Coal Miner'
PORTUL003 - Portulacaria afra 'Manny'
SANS001 - Sansevieria trifasciata [Hahnii Group] 'Radiant Star'
SANS002 - Sansevieria trifasciata 'Night Owl'
SANS003 -
Sansevieria trifasciata 'Kristi'
SANS004 - Sansevieria trifasciata 'Black Limon'
SANS005 -
Sansevieria trifasciata 'Spearmint'
SANS006 - Sansevieria trifasciata 'Green Mermaid'
SANS007 - Sansevieria aubrytiana 'Yellowstone'
SANS008 - Sansevieria trifasciata 'Black Princess Sandy'
SANS009 - Sansevieria trifasciata [Hahnii Group] 'Forest Star'
PEPE013 - Peperomia scandens 'Silver Haze'
CRAS001 - Crassula atropurpurea var. arborescens CURLY GREEN
CRAS002 - Crassula ovata 'Minova Minor'
CERO001 - Ceropegia linearis subsp. woodii 'Silver Glory'
Chlorophytum comosum 'Bonnie Green'
Chlorophytum comosum 'Irish Green'
Chlorophytum comosum 'Irish'
Chlorophytum virescens 'Hawaiian'
Syngonium erythrophyllum 'Llano-Conti Road'
Syngonium erythrophyllum 'Ice Frost'

Syngonium podophyllum 'Red Spot Tricolor'
 Philodendron 'Red Moon'
Philodendron scandens f. scandens 'Gabby'
Philodendron scandens f. scandens 'Rio'
Philodendron scandens f. scandens 'Cream Splash'
Philodendron pedatum 'Glad Hands'
Philodendron 'Red Heart'
Philodendron 'Florida Ghost' (may='Florida Beauty White', an established name)
Philodendron 'Whipple Way'
Philodendron 'Black Cardinal Variegated'
Hedera helix 'Lakeview Yellow'
Alocasia x amazonica 'Loco'
Alocasia 'Architexture'
Syngonium podophyllum 'T25 Dwarf Variegated'
Syngonium podophyllum 'Aom Nak'
Syngonium podophyllum 'Brocante'
Syngonium podophyllum 'Green Splash'
Syngonium podophyllum 'Magic Marble' ('Three Kings')
Syngonium podophyllum 'Milk Confetti'
Syngonium podophyllum 'Mojitio'
Syngonium podophyllum 'Panda'
Syngonium podophyllum 'Red Spot Tricolor'
Syngonium podophyllum 'Slim Shady;
Syngonium podophyllum 'Strawberry Ice'
Syngonium podophyllum 'Holly Ribbon'
Syngonium podophyllum 'Yellow Neon'

Ficus natalensis subsp. lepireurii (triangularis) 'Coconut Cream'
Ananas comosus 'Elite Gold'
Peperomia rugosa 'Aussie Gold'
Hoya carnosa (Compacta Group) 'Jodie's Silver'
Peperomia metallica 'Galaxy'
Ficus pumila 'Ice Caps'
Aphelandra squarrosa 'White Wash'
Setcreasea pallida 'Purple Pixie'
Setcreasea pallida 'Purple Sparkle'
Peperomia metallica 'Harmony's High Voltage'
Peperomia 'Peppermill Variegated'
Costus erythrophyllus 'Two Toner'
Pachira aquatica 'Snowbound'
Aeonium arboreum 'Purple Crest'
Aeonium decorum 'Triple Crest'
Aglaonema commutatum 'Creamed Spinach'
Alternanthera ficoidea 'Bettzick Green'
Crassula pelucida 'Golden Wings'
Ceropegia linearis 'Ace of Spades'
Sansevieria trifasciata (Hahnii Group) 'Glimmering Star'

Copyright 2022. Laurence C. Hatch. All Rights Reserved.

  Cultivars of Hedera helix.....

   More than 1600 cultivars of Coleus courtesy of our partners at the International Coleus Society.