How much sun does it get?

That spot gets little to no sun.

Epimedium (barrenwort) might grow there if you water at least twice a week and enrich the soil with plenty of good compost.

Here's a list froma nursery in VA. We're z7 also, so some of them ought to be available in your area. It's nice, since it has a picture of each plant. The page is not labeled as a dry shade list, but it is the results from a search on her site.

Here is a link that might be useful: Plants for Dry Shade