Perennial: Evergreen. Drought tolerant. Deer resistant. Very tough and easy to grow. Good cut flower, border, edging and rock garden plant. Attracts butterflies and hummingbirds. Bloom time: late spring-summer. Bloom color: deep blue to violet. Mat forming: 6-12" x 12-18". Exposure: sun/part shade. Water: moderate. USDA Z4-9. A very underused plant!