1. HATCH'S CULTIVARS OF WOODY PLANTS (CWP) is our 6500 page encyclopedia of all known cultivated varieties of ornamental trees, shrubs, conifers, and vines. To review and order scroll down.

2. The OROC (Open Registration Of Cultivars) for woody plant registers are found below. That latest register is always free and offered every year. Back registers are available only to CWP subscribers.

Click cover below to open.



  
Hatch's Perennials 2021-2022 Edition
Our new low price of just $45.00 per single user is a big rollback to encourage more users this year.



Hatch's Perennials 2021-2022 Edition

Page Counts (PDF 8 x 10 in. to 8 x 16 in.): 3349
Interface: HTML menu viewable on any internet-connected device. Data files are PDF format. They can be copied to and used on any phone, tablet, desktop, or PDF reader with suitable space.
Megabytes: 392 MB
Author: Laurence C. Hatch, horticultural taxonomist and cultvar historian with contributions from more than 14 genus experts and users worldwide.
Images: More than 2500 JPG images in digital, high resolution quality. Our standard is a minumum of 1250 pixels wide whenever possible. New images are added with most updates.
Cultivar Counts: Achillea=118, Agapanthus=192, Ajuga=118, Aquilegia=274, Baptisia=68, Bergenia=81, Campanula=362, Cortaderia=66, Dicentra=56, Echinacea=142, Epimedium=159, Farfugium=82, Geum=193, Hibiscus herbaceous=221, Leucanthemum=187, Mentha=121, Miscanthus=192, Monarda=162, Opuntia=184, Phlox=971, Salvia=418, Sedum=342, Tradescantia (hardy)=98, Trillium=121, Yucca=97, plus all genera with cultivars.
Taxa Range: All ornamental and hardy herbaceous perennials to USDA zone 7, including some marginals where hardiness may vary by cultivar or strain. Tender herbaceous plants only hardy in USDA zones 8-10 only are covered in Hatch's Interior Plants (HIP) and that volume is free from a link to the right.
Access Rights: this is a private, subscription-only website so the URL must not be shared with others or posted for public use unless you purchase a Library license for single building use.
MIssion Statement: To be and remain the largest  and most complete catalog of horticultural varieties or cultivars of hardy herbaceous, garden perennials ever published in any medium.
Subscription Duration: You will receive access to all updates through December 31, 2022





Our encyclopedia of house, interior, and tropical plants is 100% free and also incorporates our cultivar registration project. Click the logo below to view.




Hatch's Cultivars of Woody Plants
2021-2022 Edition

Page Counts (PDF 8 x 10 in. to 8 x 16 in.): 6591

Interface: HTML menu viewable on any internet-connected device. Data files are PDF format.
Megabytes: 1410 (14GB)
Author: Laurence C. Hatch, horticultural taxonomist and cultvar historian with contributions from more than 40 genus experts and users worldwide.
Images: More than 2500 JPG images in digital, high resolution quality. Our standard is a minumum of 1250 pixels wide whenever possible. New images are added monthly.
Cultivar Counts: Abelia=80, Aesculus-=110, Abies=489, Acer palmatum=547, Aucuba-173, Buddleia=318, Cercis=92, Chamaecyparis obtusa=351, Cornus=613, Ginkgo=213, Juniperus=1100+, Loropetalum=67, Lonicera=403, Mahonia=94, Podocarpus=97, Robinia=74, Salix=254, Sciadopitys=94, Taxodium=75, Thuja excluding Platycladus=446, Viburnum-271, plus all genera with cultivars.
Taxa Range: all temperate woody plants including trees, shrubs, conifers, vines, hardy palms, and subshrubs, covering mainly cultivars with occasional botanical taxa added for comparison.Tender woody plants only hardy in USDA zones 8-10 only are covered in Hatch's Interior Plants (HIP).
Access Rights: this is a private, subscription-only website so the URL must not be shared with others or posted for public use unless you purchase a Library license for in-building use. 
MIssion Statement: To be and remain the largest  and most complete
catalog of horticultural varieties or cultivars of garden trees, shrubs, vines, and conifers ever published in any medium.
Subscription Duration: You will receive access to all updates through December 31, 2022

 

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Laurence C. Hatch.
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