I took this photo of Clematis x cartmanii ‘Joe’ a number of weeks ago in my friend Barry’s greenhouse, just before the buds opened. In a day or two I’ll update you with a photo of what it looked like today, with the blooms wide open.
Meanwhile, Barry has also posted about his plant with a bit of background information.
By example and his own enthusiasm, Barry has really opened my eyes to the diversity in the clematis world. I finally get what all of those nutty clematis spotters are going on about.