Lady Bird Johnson Wildflower Center - The University of Texas at Austin information

 Native Plant Database

Penstemon grandiflorus (Large beardtongue)
Loughmiller, Campbell and Lynn

Penstemon grandiflorus Nutt.


Large beardtongue, Large-flower beardtongue, Large-flowered penstemon

Scrophulariaceae (Figwort Family)



Large, lavender, horizontally arranged, tubular flowers on a smooth stem above opposite, blue-green, clasping leaves and in axils of similar leafy bracts. This perennial’s stout, unbranched stems, 2-3 ft. tall, bear opposite, blue-green, waxy leaves and pink to bluish-lavender, tubular flowers. The large flowers extend horizontally on short stalks from the axils of leafy bracts near top of stem.

This handsome plant is especially spectacular when growing in masses. It occasionally escapes from cultivation in the East. At least 15 species of Penstemon occur in eastern North America, and there are many more in the West.

Image Gallery:

3 photo(s) available

Plant Characteristics

Duration: Perennial
Habit: Herb
Flower:
Fruit:
Size Class: 1-3 ft.

Bloom Information

Bloom Color: Pink , Purple
Bloom Time: May , Jun

Distribution

USA: CO , CT , IL , IN , IA , KS , MA , MN , MO , MT , NE , ND , OH , OK , SD , TX , WI , WY
Native Distribution: IL to ND & s.e. MT, s. to c. TX
Native Habitat: Dry prairies
USDA Native Status: L48(N)

Growing Conditions

Light Requirement: Sun
Soil Description: Sandy soils.
Conditions Comments: Not Available

Last Update: 2012-10-03