|This is a hardy, upright, highly-branched perennial, to 3' tall and 24" wide. Leaves are lanceolate to oblong, wrinkled, medium green, to 4" long. Widely grown for its dense, violet to bluish-purple, spiked summer flowers with bracts of similar color. Outstanding for mass plantings, borders, or containers. Thrives in full sun. Heat and drought tolerant. Native to Europe and Central Asia.