Rocky Mtn. Penstemon – Penstemon strictus

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Penstemon strictus, commonly known as Rocky Mountain Penstemon, is a stunning perennial plant that is native to the Western United States. With its vibrant blue-purple flowers and slender spikes, this plant is a favorite among gardeners and nature enthusiasts alike.


Rocky Mountain beardtongue, with its spikes of bright blue flowers and evergreen foliage, is one of the easiest-to-grow Penstemon. Long-lived, this beauty thrives in almost any well-drained soil with full sun exposure. Drought resistant/drought-tolerant plant.


Typical Uses

Rocky Mountain Penstemon is a versatile plant that can be used in various ways:

  • Garden Borders: Plant it along garden borders to add a pop of color and attract pollinators.
  • Wildflower Gardens: It’s a great addition to wildflower gardens, creating a natural, meadow-like atmosphere.
  • Erosion Control: Its deep roots help prevent soil erosion, making it a valuable asset for landscape stabilization.

Establishment and Care Instructions

Here are some guidelines for establishing and caring for your Rocky Mountain Penstemon:

  • Planting: Choose a sunny location with well-draining soil. Plant in spring or fall, and space them about 12-18 inches apart.
  • Watering: Water regularly to keep the soil consistently moist, especially during the first growing season. Once established, it is drought-tolerant.
  • Pruning: Deadhead spent flowers to encourage continuous blooming and maintain a tidy appearance.
  • Fertilizing: Use a balanced, all-purpose fertilizer in the spring to promote healthy growth.
  • Winter Care: Mulch around the base of the plant in late fall to protect it during the winter months.

Special Features and Usage

Rocky Mountain Penstemon offers several special features:

  • Wildlife Attraction: The vibrant blooms attract bees, butterflies, and hummingbirds to your garden.
  • Native Beauty: It’s a native wildflower, adding a touch of regional beauty to your landscape.
  • Cut Flowers: The long-lasting cut flowers make beautiful additions to floral arrangements.

Enhance your garden’s beauty with the Rocky Mountain Penstemon. Its stunning appearance, low maintenance, and ecological benefits make it an excellent choice for any landscape.



Light Requirement

Full Sun

Soil Moisture

Well Drained

Water Use





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