Scarlet Penstemon, Heller's Beardtongue, Hill Country Penstemon
Penstemon triflorus

Family: Plantaginaceae
Genus: Penstemon (PEN-stem-on) (Info)
Species: triflorus (TRY-flor-us) (Info)
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Category:

Perennials

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

This plant is attractive to bees, butterflies and/or birds

Water Requirements:

Drought-tolerant; suitable for xeriscaping

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Unknown - Tell us

Height:

18-24 in. (45-60 cm)

Spacing:

15-18 in. (38-45 cm)

Hardiness:

USDA Zone 8a: to -12.2 C (10 F)

USDA Zone 8b: to -9.4 C (15 F)

USDA Zone 9a: to -6.6 C (20 F)

USDA Zone 9b: to -3.8 C (25 F)

USDA Zone 10a: to -1.1 C (30 F)

USDA Zone 10b: to 1.7 C (35 F)

Sun Exposure:

Full Sun

Sun to Partial Shade

Danger:

Unknown - Tell us

Bloom Color:

Pink

Rose/Mauve

Red

Bloom Time:

Mid Spring

Foliage:

Evergreen

Smooth-Textured

Other details:

Unknown - Tell us

Soil pH requirements:

7.6 to 7.8 (mildly alkaline)

7.9 to 8.5 (alkaline)

Patent Information:

Unknown - Tell us

Propagation Methods:

From semi-hardwood cuttings

From seed; direct sow outdoors in fall

From seed; winter sow in vented containers, coldframe or unheated greenhouse

From seed; stratify if sowing indoors

From seed; sow indoors before last frost

Self-sows freely; deadhead if you do not want volunteer seedlings next season

Seed Collecting:

Allow pods to dry on plant; break open to collect seeds

Regional

This plant has been said to grow in the following regions:

Mesa, Arizona

Arlington, Texas

Austin, Texas (4 reports)

Crawford, Texas (2 reports)

Dallas, Texas

Helotes, Texas

Uvalde, Texas

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Gardeners' Notes:

2
positives
0
neutrals
0
negatives
RatingContent
Positive

On Mar 9, 2007, frostweed from Josephine, Arlington, TX (Zone 8a) wrote:

Scarlet Penstemon, Heller's Beardtongue, Hill Country Penstemon Penstemon triflorus is Endemic to Texas,

Positive

On Feb 22, 2007, LindaTX8 from NE Medina Co., TX (Zone 8a) wrote:

Scarlet Penstemon is a native wildflower in Texas, although somewhat uncommon. The first time I saw it in a pasture I was driving by, I pulled over, grabbed my camera and went over a barbed wire fence to take a photo of it. Then I had to find a way to get one. Fortunately, I found some at a native nursery the next year and I've had this beautiful penstemon growing here ever since. It even tolerates the native soil around here and it always amazes me anything can thrive in that!