wrote:

I want to plant to provide screening on a porch, so I would like a
type I or type II that I don't need to prune I think. I'm in zone 6
and the site will get 2/3 day sun and is protected from wind pretty
well.

Check out Bill Bird's article:
http://www.gardenbuddies.com/article...bill/bill.html He is a
Clematis guru of sorts, and his recommendations are working out quite
nicely for me.

Suja