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Marcus, Joseph A.
Penstemon triflorus A. Heller
Hill Country Penstemon, Scarlet Penstemon, Heller's beardtongue
USDA Symbol: PETR2
USDA Native Status: L48 (N)
Hellerís beardtongue or Hill Country penstemon is 1 1/2-2 ft. tall. Its brilliant red flowers, 2 in. long, are among the most showy of the genus. Pairs of dark-green leaves occur opposite eachother along the stem. The two-lipped flowers also occur in pairs.
Small bushy stature, intense red color, and largeness of flowers set this penstemon apart from others.
Plant CharacteristicsDuration: Perennial Habit: Herb Leaf Arrangement: Opposite Leaf Pubescence:
Puberulent Leaf Margin: Dentate Inflorescence: Panicle
, Terminal Size Notes:
1.5-2 feet. Flower: Flower
up to an inch wide. Sepals
5 Fruit: Size Class:
Bloom InformationBloom Color: Red
Bloom Time: Apr , May
DistributionUSA: TX Native Distribution: Endemic
to the Edwards Plateau in TX Native Habitat:
Limestone hills; open areas
Growing ConditionsWater Use:
Low Light Requirement:
Sun Soil Moisture:
Dry Soil Description:
Limestone soils. Sandy, Sandy Loam, Medium Loam, Clay Loam, Clay, Limestone-based Conditions Comments:
Hill Country penstemon is a striking prairie or garden plant, and is another fabulous cut flower. Provides nectar
for butterflies and hummingbirds. Cut back the old seed stalks or allow them to reseed. Hybridizes with the closely related Penstemon cobaea. Small bushy stature, intense red color, and largeness of flowers set this Penstemon apart from others.
BenefitUse Ornamental: Perennial
garden, Blooms ornamental, Showy Conspicuous Flowers:
Hummingbirds Nectar Source:
PropagationPropagation Material: Seeds
Description: Propagation is by seed or cuttings.
Seed Collection: Collect seed mid-summer, making sure it has not had the opportunity to hybridize with P. cobea.
Seed Treatment: Germination is best with cold-moist stratification.
Commercially Avail: yes
From the National Suppliers Directory
According to the inventory provided by Associate Suppliers, this plant is available at the following locations:
Far South Wholesale Nursery
- Austin, TX
Record Last Modified: 2009-04-15
Research By: TWC Staff