Most of my trellis's have at least two. I try to get an early flowering and
a late flowering on the same one. but of course that doesn't always work
when I lose the tags! Other than that I try to get a pink with purple or
variations of.
I think to date I have 30 different clematis. Currently 10 are in bloom.

Zone 5b

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Dana
www3.sympatico.ca/lostmermaid
wrote in message
ups.com...
Has anyone ever grown a summer clematis and an autumn clematis on the
same trellis? I was wondering if each could hold it's own or if the
autumn clematis would be too over-powering.