LG, I've had no flowers from Impossible Dream yet. It was planted in the fall of 2014, so this will be its second summer. I had buds last year but we had a snow storm in early May and they were blasted.
Liz, Planteck is located in Quebec. I believe they are a wholesale who sell only to other suppliers, and it is these suppliers who bring the plants to the garden centers for consumers. Here in western Canada I've seen them marketed under the name "Heritage Perennials" (
http://www.perennials.com/) and so far for me the plants have all bloomed true to name. From the photos I've seen online it appears Planteck has quite a large garden, but I'm not sure if it's open to the public. It'll be interesting to see what they bring to market in the future, as their catalog states that their breeding program is aimed at producing large double flowering Itohs.