What to grow on short but steep slopes
I have a few areas in my St. Louis backyard (clay-based soil) that slope down (face NE), get some a.m. sun only & are under or/at the edge of oak & maple trees. The grass no longer grows there & the soil is eroding. We have tried different ground covers, but they don't make it (too dry under the oak or too steep(?) in another area). I don't want just "shade grass" seed there, but something pretty that will hold the soil yet not hurt any exposed tree roots - flowers not a requirement. Thanks!
Submitted by BHGPhotoContest

It sounds like a really tough site, so I'm going to recommend a couple of really tough groundcovers. Consider Bishop's Weed (Aegopodium podagraria 'Variegatum') or Lily of the Valley (Convallaria majalis). Plant them as close together as 4 inches or as far apart as 12 inches. Create a little mound of soil on the downhill side of the plant to catch water. Then they're going to need some TLC during their first season so they'll become established. Water deeply once a week; because the water will run right down the slope, you might put a sprinkler with a fine droplet size on the site for an hour. Both Bishop's Weed and Lily of the Valley can be aggressive once they're established, and they'll be able to prevent erosion.

Answered by BHGgardenEditors