Perennial: Drought tolerant. Deer resistant. Deciduous. Produces fragrant flowers 2-3". Good cut flower, border & rock garden plant. Resistant to insects & diseases. Himalayas native. Bloom time: summer-fall. Bloom color: lavender blue with yellow center. Size: 1-3' x 1.5'. Exposure: sun/part shade. Water: moderate/moist. USDA Z4.