Clematis: Fall Clematis Care, 1 by pirl

pirl wrote:
Nelly will fade even if you had her in all shade. It's normal for clematises, Japanese irises and many other plants. The color on day 1 is not the same as subsequent days.

Venosa doesn't change drastically so it should do well.

I don't have Asao anymore. Try feeding it well in spring - compost, manure, ES. More sun is always a good option. Do it if possible and move it as it's entering dormancy or in early spring before growth begins.