Penstemon canescens

Common Names

Eastern Gray Beardtongue, Appalachian Beardtongue

Summary

Penstemon canescens is a clump-forming perennial native to the eastern United States, especially the Appalachian region, with stems and foliage bearing short gray hairs for a soft, gray appearance. It grows about 12–30 inches tall and 12–18 inches wide, and features loose terminal racemes of two-lipped tubular flowers that are lavender to pink (occasionally pale purple), blooming from mid-spring to early fall and attracting bees and hummingbirds. Cultivation is straightforward: it prefers full sun and well-drained soils, including rocky or sandy lean soils, with drought tolerance once established. Hardy in USDA zones 5–8, it is easy to grow and can be propagated by division or by seed with cold-moist stratification; deadheading prolongs bloom and pruning after flowering encourages vigor. Ideal for sunny borders, rock gardens, and native plant gardens, it is deer resistant.

Lifecycle

Perennial

Height

1-2.5 feet

Spread

12-18 inches

Hardiness Zones

Zones 5-8

Sunlight Requirements

Ideally Full Sun. At least 6 hours of direct sun per day, tolerates light shade.

Soil Type

Well-drained soil, preferably rocky or sandy lean soils, with dry to medium moisture.

Soil Drainage

Well-drained soils.

Soil pH

Tolerates all pH levels

Bloom Color

Light purple flowers with white throats, pale to dark violet, soft lavender to pink hues.

Bloom Time

Spring through Fall

Foliage Color

Grayish-green

Fall Foliage Color

Grayish-green

Growth Rate

Relatively easy to grow.

Seasons of Interest

Spring, Summer, Fall

Propagation Methods

Seeds (outdoors in late fall/winter or indoors with a 6-week refrigeration), Division

Attracts Wildlife

Attracts bees, hummingbirds, butterflies, and other pollinators