Penstemon 'Garnet'
Common name(s): beardtongue
Description: perennial; one of the hardiest of our garden penstemons. Narrow foliage and blooms of tubular red flowers from summer to first frost. Originally known as Penstemon 'Andenken an Friedrich Hahn'.
Height: to 3 ft. Spread: to 3 ft.
Position: full sun and well-draining soil
Uses: ornamental, to attract pollinators
Winter Hardiness: to 0 F and below
Care: prune to 6 inches above the ground in spring (after all danger of last frost) to rejuvenate foliage. Adding a 1-2 inch layer of gravel around the base increases survivability and prevents crown rot. Cutting back spent blooms in summer will encourage more blooming but is not necessary. No fertilizer.