Smooth Wasatch Penstemon

Penstemon cyananthus var. subglaber var. subglaber

var. subglaber

Penstemon

Plantaginaceae

Flowering Plants

Zone 4–9

🐾 Pet-Safe

Smooth Wasatch Penstemon is a rare variety distinguished by its notably glabrous (smooth) foliage and vivid blue tubular flowers native to the northern Rocky Mountain states. It prefers well-drained soils and partial shade, making it ideal for naturalized mountain garden settings in Idaho, Montana, Utah, and Wyoming. Water regularly during establishment, then reduce frequency as this slow-growing perennial adapts to its environment.

Care Requirements

Care Level

Moderate

Sun

Partial Shade

Water

Moderate

Growth Rate

Slow

Mature Height

12″ – 24″

Soil

sandy loam

Life Cycle

Perennial

Spacing

18″

Watering Schedule

Every 7-10 Days • Water Deeply Until Soil Is Moist, Then Allow To Dry Between Waterings

Soil pH

5.8 – 7.4

Temperature

-25° – 90°F

Mature Spread

up to 12″

Root Depth

Medium

Foliage

Medium

Ecology & Origin

Native to

Idaho

Montana

Utah

Wyoming

Attracts

🐝 Bees

🐝 Hummingbirds

🐝 Butterflies

Sources

Data: trefle, usda

Hardiness Zones

Check your zone:

Available From (0)

No nurseries currently have this species in stock.