|Heat-loving, spreading perennial with showy, 2 to 3 inch wide red-purple flowers that bloom in summer. Trailing habit makes this an excellent ground cover or rock garden plant. Easy and durable plant. Plant in full sun for best growth and flowering. Grows well in both cold and hot, dry areas. Hardy in zone 4a. Grows 6 to 12 inches high and 1 to 3 feet wide. Keep soil moist until completely established. Drought tolerant when established. Little prunning is needed.