Tuberous Perennial: Drought tolerant. Clay tolerant. Produces showy 1" three-petaled blooms that last just a day, but are steadily produced in great numbers summer-fall. Creamy-green variegated foliage. Clump forming. Versatile and easy to grow in dry or moist soil. Attracts butterflies & hummingbirds. Bloom color: brilliant sky blue with bright yellow anthers. Size: 12-18" x 18". Exposure: sun/part shade. USDA Z7.