Just a short wall! Knee height or so. I'd like something either colourful, or with nice foliage. Evergreen maybe? Can't really do a climber as the bed below it isn't great, and I have creeping thyme growing on it just to cover the area.
I was considering tumbling strawberries, as the wall is on the patio, but I can't be bothered with the faff of netting.
Any ideas?