
Sawsepal penstemon
Penstemon glaber
Sawsepal penstemon is a striking native perennial of the Rocky Mountain region, producing large, showy blue to lavender tubular flowers that are magnets for hummingbirds and native bees from late spring through midsummer. It thrives in well-drained soils under full sun to partial shade and is quite drought-tolerant once established, requiring little supplemental irrigation. Minimal pruning after flowering helps maintain a tidy habit and may encourage a second flush of blooms.
Care Level
Low
Sun
Partial Shade
Water
Moderate
Growth Rate
Moderate
Mature Height
12″ – 48″
Soil
loam
Life Cycle
Perennial
Spacing
18″
Watering Schedule
Every 10-14 Days • Water Deeply And Allow Soil To Partially Dry Between Waterings; Avoid Standing Water
Soil pH
6 – 8
Temperature
-25° – 95°F
Mature Spread
up to 48″
Root Depth
Medium
Foliage
Coarse
Propagation: Seed, Division, Cutting
Native to
Attracts
Sources
Data: trefle, usda
Image: trefle.io — Taken Oct 2, 2015 by EOL − Barry Breckling (cc-by-nc-sa)
No nurseries currently have this species in stock.