Wild Smooth penstemon is a perennial native prairie wildflower (a perennial native prairie forb). Penstemon digitalis is a perennial native prairie wildflower (a perennial native prairie forb). Oak Prairie Farm offers retail perennial native prairie wildflowers (retail perennial native prairie forbs). Oak Prairie Farm offers wholesale perennial native prairie wildflowers (wholesale perennial native prairie forbs). This Prairie Guidebook page provides perennial native prairie wildflower (perennial native prairie forb) wild plant propagation information. This Prairie Guidebook page provides perennial native prairie wildflower (perennial native prairie forb) wild seed treatment information. This Prairie Guidebook page also provides perennial perennial native prairie wildflower (perennial native prairie forb) wild seed sales information.

Smooth beardtongue	Also called: Foxglove beardtongue

Botanical name:	Penstemon digitalis

Description: Many white flowers grow on spreading branching stalks at the top of the plant. The flowers are in clusters and there are leaves below each flower cluster. These perennial, plants are up to 5 feet tall, with smooth shiny 6 inch leaves which are finely toothed and taper shaped.

Attracts:	Honeybees.
Bloom time:	From June through July.
Range:	Throughout the tall grass prairie.
Sunshine:	Full sun.
Moisture:	Middle to fairly dry.
Soil types:	Clay or loam best.

Suggested seed treatment: You should provide 30 days of cold moist stratification. Many prairie wildflower seeds benefit by moist cold stratification, some require it to germinate. Seed that you purchase from Oak Prairie Farm has not received cold moist stratification.

Direct planting tips: Plant seed in desired location covered by 1/4 inch soil, and firm. Plant seed in cool soil.

Transplants: If you grow transplants from our seed: transplant while dormant in spring or fall, trim long roots, plant with buds just below the soil surface, space 1 to 2 feet apart.

Companion prairie plants: Yellow coneflower, Purple coneflower, Prairie dock, Big bluestem, Indian grass.

Comments: Very nice for the home landscaper.

indicates photos taken by Dan Klapper.

indicates photos taken by Dr. Era Jo Moorer. All others taken by Lin Heinrich.
See the About Oak Prairie Farm link on the Home page for more information concerning photographers.