Bugleweed, Heuchera ('Purple Palace'), small Hosta ('Green Mouse Ears') and orange geum.
Bugleweed is known to spread, and that's actually TOTALLY fine with me. Over the next few years, as the bugleweed expands, I'll move matured plants to make room for it. A contained space like this is the ONLY place I would ever plant something like bugleweed. What have you done with your landing strip?