Annual or Tender Perennial: The Stream Compact Series is floriferous, has strong colors, is ball-shaped, heat tolerant, starts compact and continues to grow and fill. Good for borders, rock gardens, ground covers, containers, hanging baskets and window boxes. Blooms have a wonderful honey scent. Attracts butterflies. Bloom time: spring-fall. Bloom color: white. Height: 4-6 inches. Width: 10-18 inches. Exposure: sun/part shade. Water: moderate. USDA Z8-11.