I have not bought Rosemoor but I have other Evison clematis and I find the colours on his web site are true when grown. The description sounds as if it may vary slightly. Sorry I could not be more help.

thank you Cestrian. I'm very interested in Evison clematis having bought ''Shimmer'' earlier this year. Its so gorgeous I'm thinking of buying another! Can I ask which ones you have and what is your favourite. I want one with a long flowering period and loads of flowers.