Perennial Herb: Evergreen. Deer, drought, clay, bog & coast tolerant. Use in borders, pots, between stones, rock gardens & as a ground cover. Attracts butterflies & hummingbirds. Blooms: spring-summer. Color: bright blue. Foliage: shiny, dark mahogany. Robust & vigorous: 4-6". Sun/part shade. Water: moderate/moist. USDA Z3-10.