For-get-me-nots (myositis alpestris)
Siberian wallflower (Erysimium allioni)
Dwarf sweet william (Dianthus barbatus)
Dwarf snap dragon
Whitley's speedwell
Dwarf perennial candytuft
Alyssum saxatile
Some alpines might work?
I am going to try for a living mulch around perennials and shrubs.
