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Marcus, Joseph A.
Penstemon baccharifolius Hook.
Rock penstemon, Cut-Leaf Penstemon, Baccharis-leaf beardtongue, Beard Tongue
USDA Symbol: PEBA
USDA Native Status: Native to U.S.
Clustered spikes of cherry-red, tubular flowers line the 1-1 1/2 ft. stalks of this almost shrubby perennial. Baccharis-leaf beardtongue or rock penstemonís dark-green leaves are thick and toothed, and sometimes are quite hairy.
This beardtongue attracts hummingbirds and is browsed by deer.
Plant CharacteristicsDuration: Perennial Habit: Shrub Size Notes:
1-1.5 feet. Flower:
Fruit: Size Class:
Bloom InformationBloom Color: Red
Bloom Time: Jun , Jul , Aug , Sep
TX Native Distribution:
In TX, Edwards Plateau & Trans-Pecos; also adjacent Mex. Native Habitat:
Limestone crevices & bluffs. Limestone bluffs of the Edwards Plateau and Trans-Pecos. Well-drained limestone. USDA Native Status: L48(N)
Growing ConditionsWater Use:
Low Light Requirement:
Sun , Part Shade Soil Moisture:
Dry Soil pH:
Acidic (pH<6.8) Soil Description:
Well-drained, limestone soils. Rocky, Gravelly, Sandy, Limestone-based. Conditions Comments:
Clustered spikes of cherry-red, tubular flowers line the stalks of this almost shrubby perennial. Baccharis-leaf beardtongue or rock penstemons dark-green leaves are thick and toothed,
and sometimes are quite hairy. This beardtongue attracts hummingbirds and is browsed by deer.
BenefitConspicuous Flowers: yes
Nectar Source: yes
Deer Resistant: Minimal
PropagationPropagation Material: Seeds
Description: Take cuttings on new growth in spring or on cut back plants in the nursery. Pot up rooted cuttings right away as they decline fast under the mist. Works from seed too, but grows very slowly and seed is hard to collect.
Seed Collection: Not Available
Seed Treatment: Germination is best with cold-moist stratification.
Commercially Avail: yes
Maintenance: Drought tolerant rock penstemon can be cut back to maintain a dense, bushy shape. Good drainage is critical to avoid root rot. Protection from direct west sun is helpful. Avoid overwatering.
From the National Organizations Directory
According to the species list provided by Affiliate Organizations, this plant is either on display or available from the following:
Lady Bird Johnson Wildflower Center
- Austin, TXTexas Discovery Gardens
- Dallas, TXTohono Chul Park, Inc.
- Tucson, AZNative Plant Society of Texas
- Fredericksburg, TXNPSOT - Fredericksburg Chapter
- Fredericksburg, TXNPSOT - Austin Chapter
- Austin, TXNPSOT - Williamson County Chapter
- Georgetown, TX, TX
Wildflower Center Seed BankLBJWC-MLE-7
Collected 2009-09-01 in Terrell County by Lady Bird Johnson Wildflower Center
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Record Modified: 2009-01-13
Research By: TWC Staff