Perennial: Deer resistant. The pink tinted, green and white foliage in the spring, is covered with masses of sky blue flowers in early summer. They prefer moist but well-drained, humus-rich soil with some shade from the heat of the day, especially in warmer climates. Great in borders and containers. Attracts butterflies and hummingbirds. Size: 15-18" x 15-18". Water: mod-moist. Exposure: part shade-shade. USDA Z3.