Perennial Herb: Evergreen. Deer, drought, clay, bog & coast tolerant. Use in borders, pots, between stones, rock gardens & as a ground cover. Spreads quickly by runners. Attracts butterflies & hummingbirds. Blooms: spring-summer. Color: blue. Foliage: green. Ht: 6" in sun, 9" in shade. Sun/shade. Water: moderate/moist. USDA Z3-10.