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How To Order: Quantity options listed represent bulk weights. Examples: 1 = 1 lbs, 25 = 25 bs.



Common Name: Rocky Mountain Penstemon

Scientific Name: Penstemon strictus

Native / Introduced: Native

Main Uses:


~Revegetate disturbed sites

~Wildlife habitat improvement

Height:  1-3 feet

Colors:  Blue-violet

Flowering Season: May-July

Soil Types: Rocky, gravelly, sandy-loam soils

Tolerances: Weak acid and alkali

Sun or Shade: Full sun to partial shade

Minimum Precipitation: 11-13 inches

Lifecycle: Perennial

Planting Seed Rate: 1.5-3 lbs/acre

Estimated Seeds Per Pound: 285,000

Optimal Planting Season: Fall

Planting Depth: 1/8 - 1/4 inches

Stratification Requirements: Cold for 2-3 months at 40 degrees if planting in the spring



Rocky Mountain Penstemon is a beautiful plant that blooms in early summer with blue-violet flowers. It is well adapted to much of the mountainous western United States, and it thrives on rocky, gravelly, and sandy-loam soils on foothills, mid-mountain slopes, and in open wooded areas up to sub alpine elevations. The plant is also tolerant of weekly acid and alkali. It prefers full sun or partial shade and is semi-evergreen, with moderately palatable forage.


In addition to being a beautiful ornamental plant, Rocky Mountain Penstemon is highly valued for revegetation of disturbed sites, such as those affected by mining or other development activities. The plant's extensive root system helps to stabilize soil and prevent erosion, making it useful for slope stabilization and soil conservation. Rocky Mountain Penstemon is also a popular choice for range and wildlife habitat improvement projects, as it provides valuable forage for many wildlife species, including birds and bees. The plant's showy flowers are attractive to pollinators, making it an important contributor to local ecosystems.



NRCS Profile:

NRCS Plant Guide:

Additional Resources:


Photo Credit: Andrey Zharkikh

Rocky Mountain Penstemon


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