i have no idea what mt cuba is.. nor what you saw ... so no.. i dont have any ideas ... but im willing to try ...

how about a link ??? ..if its a trial garden.. you didnt happen to take a pic?????

maybe you can find it here: https://duckduckgo.com/?q=Coreopsis+at+mt+cuba&t=ffcm&iar=images&iax=images&ia=images

you might narrow the search if you can add a color or some other descriptors ...

ken

https://mtcubacenter.org/trials/coreopsis/coreopsis-show-stopper/

I found one place online but it always seems to be out of stock. It was in a trial garden. Figured someone here might know of a website.

You'll have a better chance in the spring. Mail-order places are mostly sold out at this time of year.

I have to second dbarron's comment. IME, pink or red flowered coreopsis have a very poor reputation for over wintering. But since it rated highly in the Mt. Cuba trials, I might give it a go, but only as a test specimen. I wouldn't invest much in it :-)

I purchased the red "Mercury Rising" coreopsis and planted it in full sun. It came back after two really tough winters. Then we had a mild winter and it disappeared the next spring, go figure.

Yeah I had same experience with a red kind, never came back. I figured since I live literly 8 minutes from Mt. Cuba I would give it a try. I have been looking for something that color with a long bloom period. My daughter showed me some pictures of it in there display gardens and it was beautiful wedge in between other plants. Guess ill have to wait and start looking online in early

Where are you located? Nobody asked. Coreopsis rosea might be a more hardy alternative if you happen to live in its range. I have discovered that all the 'named' cultivars offered for Coreopsis and Gaillardia are weak, and not what they are advertised to be. I grew some Gaillardia aristata plants from seed and they've been blooming since early spring without deadheading.

I am in Delaware. Mt. Cuba s coreopsis trial found it to be a reliable perennial. From what I have read about there trials they do almost nothing but water during drought. This is to rate them on how good they would perform for just an average home garden setting.

Just looked up coreopsis rosea. That really looks like something I may have to try! Thanks never heard of that one. Have you grown this?

Actually I may have heard of it, is it the same as American Dream.

https://mtcubacenter.org/trials/coreopsis/coreopsis-rosea-american-dream/

Is it the same as this or is it the straight species.