Best of the Hardiest
Have you ever had to choose between several attractive cultivars of one plant, and wished you knew which one was the hardiest? Me, too. That’s why I’ve created this page. Every time I find out about the hardiest cultivar or species of a plant, I’ll put the information here. I expect lots of help from the reading public here! You don’t have to have grown it yourself if you can cite your source of information. (This was originally called Name That Plant!)
| Botanical Name | Common Name | Hardy to zone | Source/Comments |
|---|---|---|---|
| Arisaema amurense subsp robustum, green form | none–it’s an Asian relative of Jack-in-the-Pulpit | 3 | Seneca Hill Perennials |
| Caryopteris X clandonensis ‘Arthur Simmonds’ | 5 | Forestfarm | |
| Cotinus coggyria ‘Nordine Red’ | ‘Nordine Red’ purple-leaved smokebush | 5 |
“I have planted Cotinus in several locations and See also my experience here. |
| Clematis ‘Prairie Traveller’s Joy’ | 1 | “I have been growing this ironclad hardy huge (15′ tall ) white clematis in Edmonton, Alberta for years now. The late summer blooms are the size of a quarter, and have a lovely light almondy scent. …You can also easily take shoots from the bottom for new plants.”–Pamela M. Source: Rundle Wood Gardens |











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i’ve read about cold climate fruit juices being helpfull in combating arthritis. could you tell me what cold climate fruits would be?
thank you
dee
It took 8 different varieties of Rose bush to find the one that bloomed from Spring to December for the Gulf Coast. I am back in NYS, Zone 8a, and hoping someone has a recommendation on a no fuss Rose bush. Thanks.
You said you are back in NYS, zone 8a, but more likely you are in zones 6a,6b, 5, 4 etc…If you need help with selecting roses I can help.
Plant Information Service Specialist at The New York Botanical Garden
cold weather garden I am considering relocating to a colder clime (UP of Michigan) and I have never gardened further north than Wichita, KS so am wondering if I can have a koi pond if I run the heater (I do this now to keep a spot open in in the ice) and what plants do well.. I love iris, daylilies, peonies, shrub roses, daffodils, japanese maple, bee balm, phlox, clematis, hosta, etc. all of which I have now. not finding much information with my first quick search. Anyone have any comments or help for me with a web site reference? Thanks in advance for your time.