Perennial Herb: Evergreen. Deer, drought, clay, bog & coast tolerant. Use in borders, pots, between stones, rock gardens & as a ground cover. Stunning when planted in masses! Spreads quickly by runners. Attracts butterflies & hummers. Blms: spring-summer. Color: bluish purple. Foliage: white w/ green margins. Ht: 6-10". Exp: sun/part shade. Water: moderate/moist.