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Eustis Lake Beardtongue

Penstemon australis (PEN-stem-on aw-STRAL-iss)

Family: Plantaginaceae Native Herbaceous (3-15 ft)

A short-lived native of the coastal plains from Louisanna to southeast Virginia, it can be found flourishing in dry pinelands, thin upland woods, sandhills, and dry fallow fields. Each plant consists of one or more flowering stems formed from a rosette of leaves. Those leaves are smooth, rounded with a tapered base, and toothed. The upper stem leaves (Cauline) are lance-shaped (narrowing at both ends) with sparsely toothed margins. The flowers are tubular shaped and two-lipped. The upper lip is 2-lobed, the lower is 3-lobed. The blooms are pink to rose-purple on the outside and white with dark purple lines on the inside. The staminode (non-functional stamen) protrudes from the flower, similar to a tongue from an open mouth, giving rise to the common name 'beard tongue'. It is easy to grow in sandy, low nutrient, well-drained soil in full sun to partial shade. Use in the native pollinator garden or rock garden. Insects, Diseases and Other Plant Problems: A short-lived perennial. More information on Penstemon .

Source: NC State Extension Gardener Plant Toolbox ↗ NC State Extension Gardener Plant Toolbox, 55 attributes.

How it fits the guild

Guild layer 4 - Herbaceous (3-15 ft)
See companions & conflicts ↓

Companions & Conflicts

Curated pairwise relationships between this plant and others in the library — who feeds whom, who competes, who confuses the pests. Green reads as a good pairing, red as one to avoid.

No curated interactions recorded for this species yet.

Also noted by NC State

Related species the NC State Plant Toolbox flags for this plant — look-alikes to tell apart, and plants that play a similar role in a planting. Ones we carry in the library are linked.

Full plant profile

Growing Conditions
Plant type
Herbaceous Perennial; Native Plant; Wildflower
Life cycle
Perennial
USDA zones
5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b
Light
Full sun (6 or more hours of direct sunlight a day) | Partial Shade (Direct sunlight only part of the day, 2-6 hours)
Soil texture
Loam (Silt); Sand; Shallow Rocky
Soil drainage
Good Drainage | Occasionally Dry | Very Dry
NC region
Coastal; Piedmont
Mature size
Height: 1 ft. 0 in. - 3 ft. 0 in. | Width: 1 ft. 0 in. - 1 ft. 3 in.
Growth rate
Medium
Maintenance
Low
Canopy layer
4 - Herbaceous (3-15 ft)
Form & Appearance
Habit / form
Erect
Leaf color
Green; Red/Burgundy
Leaf type
Simple
Leaf arrangement
Opposite; Rosulate
Leaf shape
Lanceolate; Oblanceolate; Obovate
Leaf margin
Serrate
Leaf size
3-6 inches long, 1-3 inches wide
Hairs present
Yes
Leaf detail
Basal rosette of oblanceolate to obovate leaves 2-4 inches long and .5 to 1 inch wide. Stem leaves are often edged in red, serrated, clasping and lanceolate. 2-4 inches long. Surface with short hairs.
Flower color
Green; Pink; White
Flower value
Showy
Flower form
Panicle
Flower shape
Lipped; Tubular
Flower size
< 1 inch
Flower detail
The 1-inch flowers are deep rose in color on the outside and white on the inside. Clusters of flowers occur on multiple terminal stems. Flowers bloom from May to July.
Bloom time
Spring; Summer
Fruit color
Brown/Copper
Fruit type
Capsule
Fruit detail
Capsule containing several seeds July to August.
Stem color
Green
Stem detail
Single stemmed. Not branched above the base.
Wildlife & Ecology
Native status
Native
Origin
SE USA
Wildlife value
Members of the genus Penstemon support the following specialized bee: Osmia (Melanosmia) distincta. Attracts bees and humming birds.
Attracts
Butterflies; Hummingbirds; Pollinators; Small Mammals; Specialized Bees
Play value
Attracts Pollinators
Food & Medicine
Harvest time
Summer
Fruit type
Capsule
Landscape Use
Landscape location
Coastal
Landscape theme
Butterfly Garden; Native Garden; Pollinator Garden
Design feature
Border
Garden tags
#showy flowers #specialized bees #nectar plant #pollinator plant #native garden #native perennial #native wildflower #Piedmont Mountains FACU #Coastal FACU #food source herbage #food source nectar #food source pollen #food source hard mast fruit #hummingbird friendly #food source summer #mammals #bird friendly #Audubon #rock garden #border planting #drought tolerant #bee friendly #larval host plant #NC Native Pollinator Plant #wildlife friendly #NC native #cpp #hortcontest #moth friendly
Problems & Resistance
Resistant to
Dry Soil; Poor Soil
Particularly resistant to
Heat and drought tolerant.
Propagation
Seed

Planted at Hunnicutt

Nobody’s planted this one yet.