Clematis and spruce trees
I've been reading through old forum posts on growing clematis up trees and I'm considering getting two Sweet Autumn Clematis.
I had a group of three spruce (white and blue) and one had to be removed. These are in the 25-30' range. The tree on the south side of the three was removed and this left a blank area on the other two trees where the trees touched and eventually all the needles fell off. The rest of the tree is fine.
I'd like to train a clematis next to each of the two remaining spruces to cover the dead area which extends up about 12-15'.
I read that the Sweet Autumn Clematis grows large and would cover the area.
My concern comes from pruning. I'd like to grow something that would generally be maintenance free, without the hassle of specific pruning, as in type 1, 2, and 3.
I'd like a final clematis height of 15-20'. Does the S.A. Clematis seem to fit the bill or would something else be better? Thanks.