• Penstemon grandiflorus

    Showy penstemon

Penstemon grandiflorus

Showy penstemon Description:

Penstemon grandiflorus, also known as large beardtongue, is a herbaceous perennial plant in the family Plantaginaceae. It is native to North America and can be found in prairies, meadows, and open woods from the Great Plains to the east coast of the United States. The plant typically grows up to 1 to 3 feet tall and blooms in late spring to early summer with showy pink to purple tubular flowers. The leaves are narrow and lance-shaped. Penstemon grandiflorus is an important plant for pollinators, providing nectar and pollen for bees, butterflies, and other insects. It is also used in wildflower gardens and prairie restoration projects to help establish native plant communities.

Native Range:

Showy penstemon ranges from Montana to Ohio on the Northern end of its range all the way south to Texas. 

Standard Plant Information:

Plant Height: 1' - 3' 

Bloom Time: May - July

Preferred Habitat: Does well in sun and sandy soils. Often found in dry prairies.

Sowing:

For most homeowners, the best option is to scatter seed on the ground by hand broadcasting at a minimum of 16-64 pls ounces per acre.  For even coverage, we recommend that you broadcast seed in perpendicular rows across the site to ensure even coverage.


You’ll want to broadcast any grass seed first, which will get raked into the soil lightly. Next, it is ideal to mulch the area lightly with either a clean (no seed) straw or preferably with our native Little Bluestem straw, sold at our retail garden centers. After a light mulching is complete, now it’s time to broadcast your native wildflower seeds, which should not be raked into the soil. A good rain or watering is sufficient to cover the seed.

Planting:

Simply dig a hole in the soil slightly larger than the plant’s roots. Ensure that the soil line of the plant is maintained during the transfer (i.e. the plant should be at the same level with the ground as it was in the pot). Pack any loose dirt back around the plant and make sure you water it well the same day to ensure it has the best chance of survival.

maps used with permission from MN Wildflowers

Penstemon grandiflorus Gallery

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