I have been wanting Princess Kate ever since I first saw the photos, but unfortunately, it is not yet available in the US.

Duchess of Albany and Betty Corning are also very nice. Royal Velours was new to me this past fall so I have not yet seen it bloom.

Here is a link that might be useful: Google image search for Princess Kate

That coloration is great but Princess Diana mildews horribly for me. Not enough sun for texensis here I think...

I saw this one last year and have been waiting for it to be sold in the US. Love the coloration. No mildew issues with any of my clematis. We are not as humid and cloudy as the Pacific Northwest.

Well, I ordered a "Princess Kate" from Garden Imports, to go with a 'Duchess of Albany', I already have. Sometimes Canada sneaks in - rarely.

I'm tempted to order the Gravetye as I've heard it's a blue red color to go with the above.

Could anyone advise?

Gravetye beauty is red/burgandy-ish

I have one...it does look like the google pictures link

Here is a link that might be useful: Clem. Gravetye Beauty

Gravetye Beauty is burgundy for me as well. Leans to the red spectrum. Grows well in my garden.

From 2010
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I just received a catalog from Springhill Nursery offering Princess Kate. I am not impressed with the clematis Springhill ships and wondered if there are other nurseries in the US that offer Princess Kate?

Here is a link that might be useful: Springhill Nursery

Brushwood has a crop in the works and should be on their website in a few weeks, based on a post by the owner in another forum. I have been very pleased with Brushwood's clematis.

...I'd really like to try this clematis Princess Kate.....I'm going out tomorrow to see if I can get one..... I find the colour quite appealing and with that name, it ought to be good....