Plantaginaceae
Penstemon angustifolius var. angustifolius
Penstemon angustifolius var. angustifolius var. angustifolius
Also known as Chelone caerulea
Flowering Plants · Native Plants · Penstemon · Great Plains Native · Prairie Wildflower · Tubular Flowers · Pollinator Plant · Drought Adapted · Perennial · Blue Flowers · Rocky Mountain · Native Plant
Narrow-leaf penstemon is a hardy Great Plains and Rocky Mountain native that performs best in full sun with well-drained sandy or gravelly soil. Once established it requires minimal supplemental watering and is very tolerant of cold winters across its native range. Plant in groups for a bold display of blue to purple tubular flowers that attract hummingbirds and pollinators.
Growing conditions
The details behind the basics
- Daily light
- 6 hours
- Watering
- Water deeply but infrequently; allow soil to dry between waterings · Every 10-14 days
- Maintenance
- Low
- Soil
- sandy loam
- Soil pH
- 7–8.5
- Temperature
- -25°F to 95°F
- Cycle
- Perennial
Hardiness
USDA 4b-9b
Form & growth
Mature size and habit
- Mature height
- 12 in – 2 ft
- Spread
- 12 in
- Spacing
- 18 in apart
- Growth rate
- Fast
- Root depth
- Medium
- Flowers
- White
- Foliage
- Green · Medium
Ecology & origin
Where it belongs and what it brings
- Native to
- Colorado, Montana, Nebraska, North Dakota, South Dakota, Wyoming
- Attracts
- Bees, Butterflies, Hummingbirds
Sources: trefle, usda
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