Plant Preference/Growing Conditions :
Arkansas Beardtongue lives in partial to full sunlight, preferring at least 6-8 hours of full sunlight a day. They like nutrient-dense, well-drained soil, and room for their root structures to grow out. They need extensive watering during establishment, and then after can become somewhat drought resistant.
Growth Habit/Description :
Typically grows 2-3 feet tall when in bloom with dark lance-shaped leaves. Leaves are opposite, pointed, and clasp at the stem slightly. It grows upright into a busy perennial and has a clumping base. Flowers are tubular and about an inch long with white and purple lines on the inside.
Bloom Season:
The white flowers bloom in late April through early June, being one of the earliest blooming penstemons in Arkansas
Fall and/or Winter Interest?
No. Foilage dies back completley with no color and plant enters dormancy in thw winter. However, the plant structure allows the plants to stay alive underground and contribute to soil health and erosion prevention.
Habitat : Arkansas beardtongue tends to be found in open woods, rocky outcrops, and grassy prairies. It is native to Arkansas, Missouri, Oklahoma, and parts of Texas in full to partial sun areas with a moderately moise to dry environment.
Native to Arkansas? Yes
Native to Garland County? Yes
Endemic to Arkansas? Yes, endemic to the Interior Highlands region.
Host Plant for Caterpillars?
Yes. Species of the Penstemon genus such as Penstemon digitalis (Foxglove beardtongue) are known to support species like Checkerspot butterflies.
Other Known Ecological Value?
Yes. Arkansas foxglove supports other pollinators and contributes to soil stabilization. Flowers attract hummingbirds and bees. It is ideal for native plant gardens due to its low maintenance and ecological benefits.
Origin of Name: The genus Penstemon refers to five stamens, one which is often hairy.
Related Plant Species: Arkansas beardtongue is one of the 6-8 native species of Penstemon hosted in Arkansas. It is the earliest to bloom compared to its counter parts Penstemon pallidus (Pale beardtongue), Penstemon digitalis (Foxglove beardtongue), Penstemon tenuis (Sharpsepal beardtongue), Penstemon cobaea, and Penstemon smallii (Small's beardtongue), but it is less showy than other Penstemon species.
Use For Food/Medicine:
This plant specifically does not have any documneted uses, but the Penstemon genus has been looked at for its medicinal potential such as infusions used for respritory relief, leaves for wound care, and antinflammatory effects. It is said that Penstemon species are typically not edible and can cause upsets in the digestive system if ingested.
Webmaster, Anps. “Know Your Natives – Arkansas Beardtongue.” Arkansas Native Plant Society, 16 Jan. 2022.
Available from anps.org/2021/06/10/know-your-natives-arkansas-beardtongue.
“Beardtongue, Arkansas.” Beardtongue, Arkansas,
Available from: www.uaex.uada.edu/yard-garden/resource-library/plant-week/beardtungue-arkansas-7-3-13.aspx
Plant Addicts. “Beardtongue Winter Care | Plant Addicts.” Plant Addicts, 5 Mar. 2023.
Available from: plantaddicts.com/beardtongue-winter-care