These small perennials are excellent for rock gardens and for spilling over rocky walls. Also used as edging or in pattern planting. Their dense mats of evergreen leaves become completely covered by a mass of spring flowers. Small blooms are white or purple. All need well-drained, sandy or rocky soils. They are easy to grow. Start by cuttings, division and seed. Cut back after flowering to prevent splayed growth.
This low, mat-forming plant flowers in spring and thrives where summers are cool. Stays in bloom longer than the common Wall Rockcress (A. Caucasia) but is harder to find.