Plants for a boulder retaining wall?
I have a boulder retaining wall about two and a half feet tall and need some plants to put at the bottom of the wall and in between the boulders. It is inbetween two houses and on the north part of the block so it doesn't get a lot of sun. The soil is a little on the sandy side.
Obviously, my foremost concern is plants that can keep the soil from washing out from between the boulders. Creepers, climbers, flowers, whatever. I'm open to anything that does the job
Another problem is that it's currently infested with creeping charlie. I don't have a problem going through and weeding them initially but I'd like to plant something that can crowd them out so that I don't have to weed it every week.