Clematis: Fall Clematis Care, 1 by pirl

pirl wrote:
Check the pH where the one near the patio grows. Then check the pH of where you want it to bloom. See if there's any big difference.

You could also check the pH where it is now. Might give you a better idea of what it wants.

I've always added a chunk of cement (old or new) to help combat acidity and yet Fine Gardening says it's not true that they want a sweet soil. You get to decide how it works for yourself.

The chunk of cement is on the right in this photo.