Something attractive, easy, low growing for shade, poor soil.
I'm trying to think of something that would stay under a foot tall (roughly), and would do well in hard clay soil under the canopy of a hickory tree.
This area is in the road right of way, so I don't want to spend a lot of money on things as it could, in theory, be ripped out at any time if they need to do utility work on the water or gas lines that go through the spot -- I would try some Epimedium or Helleborus there if it weren't for this, as I have those in similar conditions elsewhere and they do well.
This is around a cluster of mail boxes and a road sign, and keeping it in grass means hand-clipping. I previously tried some Autumn Joy sedum there, it has survived but never really thrived and looks ugly, so I took that out this weekend. Creeping juniper would be good IF it got sun, but its shade all day.
I guess if nothing else, I have two options -- just mulch it down and grow nothing, or 2) Lamiastrum, which I hate, but which nothing kills and will grow anywhere.
Open to better suggestions.