Slender Penstemon
Penstemon gracilentus
Merrie Freed
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Plantaginaceae
- Genus:
- Penstemon
- Species:
- Penstemon gracilentus
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Forb/herb , Subshrub
- Height:
- 2-3 ft
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Medium
- Bloom Months:
- jun, jul, aug
- Bloom Colors:
- Blue, Purple, Violet
Native Range
United States: California, Nevada, Oregon
Reported Fauna Sightings
Bees: Central bumble bee (Bombus centralis), Central bumble bee (Bombus centralis)
Soil Requirements
- Soil Type:
- well-drained, rocky or sandy soil
- pH:
- 6.0 - 7.5 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- dry to moderate
- Notes:
- native to mountainous regions, prefers open areas
Germination Information
Pre-treatment: 90 days of cold/moist treatment at a constant 38 degrees F
Establishment: Higher germination rate achieved with pre-treatment. Native to Nevada, Oregon, and California, primarily in mountainous and sagebrush plateau areas.
Source: npn.rngr.net