Perennial Herb: Evergreen. Deer, drought, clay, bog & coast tolerant. In addition, Elsa is also strong, heat tolerant & low maintenance. Use in borders, pots, between stones, rock gardens and as a ground cover. Spreads quickly by runners. Attracts bees, butterflies & hummingbirds. Blooms: spring-summer. Color: blue-purple. Foliage: variegated, metallic silvery-green. Ht: 6 in. Width: 10 in. Exposure: sun/part shade. Water: moderate/moist. USDA Z4. PPAF