Perennial: Deer resistant. Drought and coast tolerant. Fire retardant. Good for rock walls, rock gardens, edges and as a ground cover. Tolerates poor, dry soil. Very fine silver foliage. Free flowering. Attracts butterflies. Bloom time: spring-summer. Bloom color: white. Mat forming. Height: 6-8". Exposure: sun. Water: moderate/dry. USDA Z4.