Large Beardtongue
Penstemon grandiflorus
Evan Grimes https://www.inaturalist.org/people/evangrimes
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Scrophulariaceae
- Genus:
- Penstemon
- Species:
- Penstemon grandiflorus
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Forb/herb
- Height:
- 4-6 ft
- Light Requirements:
- Full Sun
- Drought Tolerance:
- High
- Bloom Months:
- may, jun
- Bloom Colors:
- Pink, Purple
Native Range
United States: Colorado, Connecticut, Iowa, Illinois, Indiana, Kansas, Massachusetts, Michigan, Minnesota, Missouri, Montana, North Dakota, Nebraska, New Mexico, Ohio, Oklahoma, South Dakota, Texas, Wisconsin, Wyoming
Reported Fauna Sightings
Bees: American bumble bee (Bombus pensylvanicus), American bumble bee (Bombus pensylvanicus), Black and gold bumble bee (Bombus auricomus), Black and gold bumble bee (Bombus auricomus), Brown-belted bumble bee (Bombus griseocollis), Brown-belted bumble bee (Bombus griseocollis), Common eastern bumble bee (Bombus impatiens), Common eastern bumble bee (Bombus impatiens), Half-black bumble bee (Bombus vagans), Half-black bumble bee (Bombus vagans), Hunt's bumble bee (Bombus huntii), Hunt's bumble bee (Bombus huntii), Nevada bumble bee (Bombus nevadensis), Nevada bumble bee (Bombus nevadensis), Two-spotted bumble bee (Bombus bimaculatus), Two-spotted bumble bee (Bombus bimaculatus), Yellow bumble bee (Bombus fervidus), Yellow bumble bee (Bombus fervidus)
Soil Requirements
- Soil Type:
- sandy, well-drained, nutrient-poor soil
- pH:
- 6.0 - 7.5 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- dry to moderate
- Notes:
- Native to prairies and open woodlands
Germination Information
Pre-treatment: Seeds are placed in cold moist stratification for 105 days.
Establishment: P. grandiflorus is found from Indiana west to North Dakota and Wyoming and south to central Texas. It grows in sandy and loamy soils in prairies.
Source: npn.rngr.net