Hi! I'm a novice gardener trying to only use native plants at my new house. I have a retaining wall of cinder blocks and would like to plant something native beside it that will spill over and down to cover the wall. I'm in the central Bluegrass (Fayette Co). The spot gets medium sun. I'd be happy with anything green, it doesn't have to be flowering. I've already tried searching for something like that, but I'm not sure what plants will trail and grow "down" Thanks!