Penstemon digitalis
Foxglove Beard-Tongue
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Foxglove Beard-Tongue (Penstemon digitalis) - Description
Penstemon digitalis (foxglove beard-tongue or talus slope penstemon) is a plant in the plantain family, Plantaginaceae. The flowers are white and are borne in summer. It is native to eastern Canada and eastern and southeastern United States.
Foxglove Beard-Tongue (Penstemon digitalis) - Blooming
Panicles of tubular or bell-shaped, two lipped flowers. Blooms attract hummingbirds.
Foxglove Beard-Tongue (Penstemon digitalis) - Growth
Deciduous or evergreen perennials and subshrubs with linear to lance-shaped leaves. Grows best in full sun or partial shade. Works well in a border or rock garden.
Foxglove Beard-Tongue (Penstemon digitalis) - Planting
Divide plants in spring, take cuttings in spring or summer, or use seeds.
Foxglove Beard-Tongue (Penstemon digitalis) - Pest
Slugs and snails are a threat to young growth. Penstemon is vulnerable to Southern blight, powdery mildew, leaf spots, and rust.
Foxglove Beard-Tongue (Penstemon digitalis) - Interesting facts
Penstemon contains a staminode, or sterile stamen, that is used as a characteristic to distinguish among the species.
Foxglove Beard-Tongue (Penstemon digitalis) - Soil and irrigation
Well-drained, evenly moist soil. Water and mulch during dry weather. Dwarf and shrub species prefer poor to average, grainy soil with excellent drainage.
