PENSTEMON digitalis (Smooth Penstemon) is a herbaceous perennial plant in the family Plantaginaceae. Native to eastern and central North America, it is a popular choice for gardens due to its attractive flowers and ability to attract pollinators.
Smooth Penstemon is a clump-forming perennial that typically grows to a height of 2 to 4 feet (60 to 120 cm). It has lance-shaped, glossy green leaves with a smooth texture, hence the common name "Smooth Penstemon." This species is commonly found in open woodlands, prairies, meadows, and along roadsides. It prefers well-drained soil and can tolerate a range of light conditions from full sun to partial shade.
The flowers of Penstemon digitalis are tubular and bell-shaped, with five fused petals that form a white to pale pink or light lavender-colored bloom. The flowers are often marked with fine purple lines or dots on the interior. They are arranged in dense spikes that rise above the foliage, creating an attractive display. Smooth Penstemon typically blooms in late spring to early summer, but the exact timing can vary depending on the climate and growing conditions.
Smooth Penstemon is known to attract a variety of pollinators, including bees, butterflies, and hummingbirds, with its nectar-rich flowers. It serves as an important food source for these pollinators and contributes to the overall ecosystem health.
||Number of Seeds
||Max Coverage Area (Square Ft.)
Scientific Name: Penstemon Digitalis
Common Name: Smooth Penstemon
Plant Type: Herbaceous perennial
Native Range: Eastern and Southern United States
Height: 30 to 36 "
Spread: 15 to18 "
Habitat: Mesic black soil, Prairies, Openings in upland, Floodplain forest, Woodland borders
Exposure: Full Sun
Blooming Season: Mid spring to early summer
Attracts: Birds, Butterflies
Resistant: Deer, Drought
Characteristics: Showy, Good cut
Flower Shape: Oblong
Flower Color: White
Water Requirement: Dry to medium
Soil Type: Well drained loams, Clay loam
Soil pH: 5.5-7.0
Uses: Raingarden, Ornamental, Wildlife