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Rocky Mountain Penstemon Seeds

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One of our lovliest Western perennial wildflowers--a handsome 3 ft. plant with colorful blue and white bloom.

Zones 3 - 6
Hummingbirds & Butterflies
Hummingbirds & Butterflies
Light Requirements
Full Sun
Full Sun
Half Sun / Half Shade
Half Sun / Half Shade
Mature Plant Size 24-36 inches tall
Bloom Time Summer

Plant Information

A blue member of the large penstemon family (250 species worldwide; all but two are North American natives) that makes a great meadow plant. Snapdragon-like flowers make it a favorite of hummingbirds.
Associated SKUs
PENQP (1/4 Pound)
PENLB (1 Pound)
Common Name Rocky Mountain Penstemon
Botanical Name Penstemon strictus
Seed Life Cycle Perennials
Light Requirements Full Sun, Half Sun / Half Shade
Flower Color Purple
Mature Height 24-36 inches tall
Bloom Time Summer
Ships As Seed
Coverage 1/4 lb covers 2,177 sq ft.
1 lb covers 8,710 sq ft.
Seeds Per Pound 591,938
Soil Moisture Average, Well Draining
Soil Type Sandy Soil, Loamy Soil, Clay Soil
Native To North America
Native To Rocky Mountain Region
Native Yes
Ideal Region Southwest, West, Pacific Northwest
Zones 3, 4, 5, 6
Advantages Hummingbirds & Butterflies, Native
Is It Storable? Yes - You can store your seed in any cool (not freezing) dry place that is not subject to extreme temperature variations.
Non-GMO Yes
Neonicotinoid-Free Yes - Learn More
Ships to Hawaii, Alaska & Canada Yes


Most orders ship within 48 hours or less.

As soon as your order is placed you will receive a confirmation email. You will receive a second email the day your order ships telling you how it has been sent. Orders for in-season products ship within 48 hours or less. Depending upon your order date, we may hold your shipment to combine it with other products on your order, if applicable. See our shipping information page for approximate ship dates and more detailed information. If you need express shipping or have any questions, please call Customer Service toll-free at (877) 309-7333 or contact us by email.

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USDA Hardiness Planting Zones

To determine if a plant is sufficiently cold hardy, the USDA created numbered zones indicating winter low temperatures; the lower the zone number the colder the winter.

  • If the coldest winter temperature expected in your area is -15°F (zone 5) then any plants rated zones 3-5 will survive the winter temperatures in your area.
  • If you live in very warm winter areas (zones 9-11) plants with zones 3-4 ratings are not recommended. The lack of freezing winter temperatures do not provide a time for winter dormancy (rest).

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