http://www.clematis.org/clematis_a-z/index.html?action=view&ID=00330 This afternoon I bought one in a 4" pot for $5. It's a late bloomer.
Clematis 'Ville De Lyon'
I have one I got from Bluestone to go up my mailbox. And I suppose back down and back up again, I didn't realize they can get so tall. *shrug* I hope it is almost red instead of pink. It will show off my Stella d'oro daylilies and Echinops Ritro nicely.