Definitely looks like you have Gillian Blades to me or a close look alike. I don't grow it but it is on my short list. Lucky find.

It isn't Henryii, that is for sure. I believe it is Gillian Blades but mine hasn't bloomed yet so I don't know from personal experience.

Id third that! No to Henryii - yes to Gillian! Lynn By the way it is LOVELY!!!!!

I'm going to have to really look for that one. I have an Angelface rose that this would look stunning behind! Oh, they're so pretty! I'm envious!

Excellent photo of my favorite clematis. It is Gillian Blades. We have 4 Henryi
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and he was my favorite until Gillian Blades got established her fifth year in our yard.
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She only had a couple dozen blooms those first few years. Now she covers 10 feet of the fence.
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There are as many blooms on the other side of the fence. Glad we were so patient with her.

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Here is a link that might be useful: Gillian Blades at Deb & Dave's