Name: Susan Virginia (Zone 8a) God is the only thing that matters.
No, when I did a search for white clematis for full sun, mine did not show up. I know it is in there, but it does not come up when you do a search.
Consider the lilies of the field, how they grow; they toil not, neither do they spin: And yet I say unto you, That even Solomon in all his glory was not arrayed like one of these. Mat.6:28-29