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
leaves and in axils of similar leafy bracts. This perennialís 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 CharacteristicsDuration: Perennial Habit: Herb Flower:
Fruit: Size Class:
Bloom InformationBloom Color: Pink , Purple
Bloom Time: May , Jun
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 ConditionsLight Requirement: Sun
Soil Description: Sandy soils.
Conditions Comments: Not Available