JNJ wrote:

We're in Zone 6, SW Ohio -- any varieties in particular anyone would
recommend? Any vendors in particular I should buy from?

I'm hoping to get some clematis at some point. I'm particularly
interested in the Jackmanii, which has deep purple flowers. I get the
impression that it's a very reliable plant.

At this point, I'm going to stick with plants from local nurseries if
possible, especially for specimen plants.