Penstemon strictus (Rocky Mountain penstemon or beardtongue) is a perennial flowering plant native to the Rocky Mountains and surrounding areas. Here are some key characteristics and descriptions of Penstemon strictus:
Botanical Characteristics:
Family: Plantaginaceae
Growth Habit: Herbaceous perennial
Height: Typically grows 1-2 feet (30-60 cm) tall
Leaves: Narrow, lance-shaped leaves that are arranged oppositely along the stem. The leaves are dark green and may have a slightly glossy appearance.
Flowers: Showy, tubular flowers that are usually deep blue to purple, though occasionally pink or white forms may occur. The flowers are bilaterally symmetrical and arranged in dense spikes. Each flower has a "bearded" staminode, giving rise to the common name "beardtongue."
Bloom Time: Late spring to mid-summer (usually May to July)
Fruit: Produces small, dry capsules containing numerous seeds.
Habitat and Range:
Native Range: Rocky Mountains, including parts of Colorado, New Mexico, Utah, and Wyoming.
Preferred Habitat: Thrives in well-drained, rocky soils, often found in open woodlands, meadows, and along roadsides. It prefers full sun to partial shade and is drought-tolerant once established.
Cultivation:
Soil Requirements: Prefers well-drained soils and can tolerate poor, rocky conditions.
Watering: Drought-tolerant; avoid overwatering.
Sun Exposure: Full sun to partial shade.
Propagation: Can be propagated from seeds or by division. Seeds may require a cold stratification period to germinate.
Maintenance: Low maintenance; deadheading spent flowers can encourage additional blooming.
Uses and Benefits:
Ornamental Use: Valued for its attractive flowers and ability to thrive in challenging conditions, making it a popular choice for xeriscaping and rock gardens.
Wildlife: Attractive to pollinators, including bees, butterflies, and hummingbirds.