SAWSEPAL PENSTEMON
Sawsepal Penstemon is a hardy, cold-tolerant perennial native to the high mountains and alpine foothills of the American West. Compact clumps of glossy green foliage send up sturdy stems topped with deep blue to violet tubular flowers in late spring to early summer, providing an important nectar source for native bees and other pollinators. This alpine variety is naturally adapted to rocky soils, open meadows, and high-elevation slopes, where winters are long and drainage is excellent. Tough yet refined, Sawsepal Penstemon is an excellent choice for mountain gardens, native plantings, and water-wise landscapes that experience cold winters and cool summers.
Native Range
Sawsepal Penstemon (Penstemon glaber var. alpinus) is native to the Rocky Mountains and Intermountain West, including:
Colorado
Utah
Wyoming
New Mexico
Northern Arizona (high elevations)
Growing Information
Botanical Name: Penstemon glaber var. alpinus
Common Name: Sawsepal Penstemon
Life Cycle: Perennial
Height: 12–24 inches
Light: Full sun
Soil: Well-drained, rocky or gravelly soils
Hardiness: USDA Zones 3–7
Bloom Time: Late spring to early summer
Water Needs: Low to moderate; drought tolerant once established
How to Grow From Seed
Cold stratify seeds for 30–60 days for best germination
Surface sow or cover very lightly
Keep soil evenly moist during germination
Germination typically occurs in 14–30 days
Once established, allow soil to dry slightly between waterings
This is for 25 seeds
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