> I live in zone 5 , Maine and I have an old-fashioned double buttercup
> in my garden. I used to have more than that but in having to move them
> I only had 1 that survived. I would like to get more perennial double
> buttercup roots so that I can put them in my garden. I have 1 double
> yellow.
> I don't know where to find the ones that are tolerant to my zone and
> can be left in the ground to winter. I didn't want to have to
> over-winter them and replant .
> Can you help with this and if so is it possible to get different
> colors that are zone tolerant.
>
> Thank you in advance for any help you can give.
>
> Susan Trundy
> Minot, Maine

Welcome to ATP, SuzyT! If you know the latin name of your plant, that would help narrow down your question. If you are unsure of that, you could search the ATP database under Ranunculus which will bring up all sorts of buttercups and see if one of the photos matches your plant. A couple doubles I found were R. 'Pleniflorus' and 'Yellow Telcolote' - if either of these looks promising you could draw attention to your question to the folks who own those plants by putting an @newyorkrita or @shelly (for example, each owns one of those two) somewhere in your post. That sends a system message to those folks to your post and hopefully they will respond. Good luck - Deb

P.S. The only buttercup I have is R. repens (creeping buttercup) which is an obnoxious and persistent weed for me. But pretty, so if I don't get it all out, it does give me nice flowers. I try to look at the bright side...

I want to get double buttercups that are perennial not annual. Can the annual be planted and expected to come up as a perennial. Sounds kind of stupid but was just wondering.

Maybe where Deb is, they'll be perennial, but not where you are Suzy. My daughter lives in Salt Lake City and the big double ranunculus rarely if ever live through the winter for her, even with a good thick mulch. She's in zone 6.

If you have a picture of the double perennial one you're looking for that will help.

Don't know if any of this will help but it's a start:

Ranunculus ficaria 'Double Bronze' - zone 4-8, in our database but not much info:
Fig Buttercup (Ficaria verna subsp. verna 'Double Bronze')

Ranunculus repens 'Flore Pleno'/Creeping Buttercup - zone 3a and up. http://www.hgtvgardens.com/flo...

This next one may be the same plant as the 'Flore Pleno' with the name worded differently. It's listed in our database but not much info.
Ranunculus repens var. pleniflorus - zone 4 -9,

http://www.perennials.com/plan...

Ranunculus acris 'Flore Pleno' owned by an ATP member in zone 3: