Perennial: Drought tolerant. The Blues Series are large, vigorous, upright and semi-trailing sun lovers with a high resistance to mildew. Good for containers, window boxes, hanging baskets, borders, and beds. Attracts butterflies and hummingbirds. Bloom time: spring-fall. Bloom color: lavender blue with white eye. Height: 10-12 inches. Width: 12-18 inches. Exposure: sun. Water: moderate/dry. USDA Z8-11. PP #26,133