|This short-lived perennial, often treated as an annual in colder climates, is grown primarily for it's pretty, tubular, two-lipped flowers (all colors but yellow). The leaves are narrow and lance shaped (up to 3 inches long). Penstemons like dry, but rich soil. They are mid summer bloomers, attract hummingbirds, and will keep your garden exciting after the spring colors have faded away.
'Sour Grapes' bears from midsummer to early or mid fall, large, tubular-bell-shaped, grayish-blue flowers, tinted rich purple and green. 24 inches tall, 18 inches wide.