• Photo of Penstemon canescens (Penstemon canescenss)

Plant Profile: Penstemon canescens

Taxonomy: Penstemon canescens

Names

Appalachian Beardtongue, Beard-tongue, Hairy Beardtongue, Penstemon

  • Photo of Penstemon canescens (Penstemon canescenss)

Phonetic Spelling:PEN-stem-on kan-ESS-senz

Genus:Penstemon

Species:canescens

Family:Plantaginaceae

Hairy Beardtongue is a perennial herb belonging to the plantain family, typically found in various habitats such as woodlands, glades, forest edges, rocky areas, and along roadsides. This species is indigenous to the Appalachian Mountains and the Piedmont region of North Carolina. From May to July, it produces pale to purple tubular flowers with two lips. The plant features leaves, stems, and flowers that are covered in short gray hairs.

This plant thrives in average, well-drained soil and can grow in full sun to partial shade, demonstrating good drought resistance. It is advisable to avoid planting it in areas where the soil remains wet during winter to prevent root rot. Hairy Beardtongue is suitable for use in borders, group plantings, rock gardens, and native pollinator gardens.

Potential issues include root rot in overly wet, poorly-drained soils, as well as the possibility of leaf spot disease.

For further details on Penstemon, additional resources are available.

Penstemon canescens Feature Summary

Penstemon canescens Image Gallery

Tags

#purple
#hummingbirds
#lavender
#perennial
#wildlife plant
#pink flowers
#showy
#shade tolerant
#nectar plant
#low maintenance
#specialized bees
#herb garden
#fire
#medium flammability
#NC native
#summer flowers
#deer resistant
#native garden
#spring interest
#pollinator plant
#native wildflower
#wildflower garden
#larval host plant
#food source summer
#food source herbage
#food source nectar
#food source pollen
#bird friendly
#nectar plant late spring
#food source hard mast fruit
#butterfly friendly
#nectar plant early summer
#nectar plant mid-summer
#pollinator garden
#bee friendly
#audubon

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Penstemon canescens Feature Summary

Attributes
It is a host plant for the Common Buckeye butterfly.  Hummingbirds, butterflies and other pollinators are attracted to the blooms.  Members of the genus Penstemon support the following specialized bee: Osmia (Melanosmia) distincta.
This plant is moderately resistant to damage from deer.  White-tailed deer will browse heavily on the foliage.
Perennial
Wildlife Food Source
medium flammability
Fruit
Fruit displays from July to August.
Flowers
Pale pink to purple flowers are up to 1.5 inches long and occur on terminal racemes. The corolla is abruptly swollen in the middle. It has grooves and dark lines in the open throat. The flowers bloom from May to July. The stem is gray and finely hairy.
Pink
Purple/Lavender
Spring
Summer
Leaves
The basal leaves are broadly ovate. The stem leaves are 2-6 inches long, clasping, and oblong-lanceolate. They are opposite with rounded to heart-shaped bases and toothed margins. Stems and leaves have short gray hairs.
Opposite
Rosulate
Oblong
Lanceolate
3-6 inches
1-3 inches
Stem
Hairy green stems
Hairy (pubescent)
Whole Plant Traits
Perennial
Native Plant
Wildflower
Herb
Cultural Conditions
Full sun (6 or more hours of direct sunlight a day)
Partial Shade (Direct sunlight only part of the day, 2-6 hours)
Good Drainage
Moist
Occasionally Dry
Mountains
Piedmont
Landscape
Rock Garden
Butterfly Garden
Pollinator Garden
Native Garden
Woodland
Slope/Bank
Butterflies
Pollinators
Specialized Bees
Hummingbirds

Penstemon canescens Attributes

Penstemon canescens: Wildlife Value

It is a host plant for the Common Buckeye butterfly.  Hummingbirds, butterflies and other pollinators are attracted to the blooms.  Members of the genus Penstemon support the following specialized bee: Osmia (Melanosmia) distincta.

Penstemon canescens: Particularly Resistant To (Insects/Diseases/Other Problems)

This plant is moderately resistant to damage from deer.  White-tailed deer will browse heavily on the foliage.

Penstemon canescens: Life Cycle

Annual
Biennial
Bulb
Perennial
Woody

Penstemon canescens: Play Value

Attractive Flowers
Attracts Pollinators
Buffer
Colorful
Defines Paths
Easy to Grow
Edible fruit
Fragrance
Pieces Used in Games
Screening
Shade
Sound
Textural
Wildlife Cover/Habitat
Wildlife Food Source
Wildlife Larval Host
Wildlife Nesting
Wind Break
Wind Shimmer

Penstemon canescens: Fire Risk Rating

extreme flammability
high flammability
low flammability
medium flammability

Penstemon canescens Fruit

Penstemon canescens: Fruit Description

Fruit displays from July to August.

Penstemon canescens: Fruit Type

Achene
Aggregate
Berry
Capsule
Caryopsis
Drupe
Follicle
Legume
Nut
Pome
Samara
Schizocarp
Siliqua

Penstemon canescens: Display/Harvest Time

Fall
Spring
Summer
Winter

Penstemon canescens Flowers

Penstemon canescens: Flower Description

Pale pink to purple flowers are up to 1.5 inches long and occur on terminal racemes. The corolla is abruptly swollen in the middle. It has grooves and dark lines in the open throat. The flowers bloom from May to July. The stem is gray and finely hairy.

Penstemon canescens: Flower Color

filter_vintage
Pink
filter_vintage
Purple/Lavender

Penstemon canescens: Flower Value To Gardener

Edible
Fragrant
Good Cut
Good Dried
Long Bloom Season
Long-lasting
Showy

Penstemon canescens: Flower Bloom Time

Winter
Spring
Summer
Fall

Penstemon canescens Leaves

Penstemon canescens: Leaf Description

The basal leaves are broadly ovate. The stem leaves are 2-6 inches long, clasping, and oblong-lanceolate. They are opposite with rounded to heart-shaped bases and toothed margins. Stems and leaves have short gray hairs.

Penstemon canescens: Woody Plant Leaf Characteristics

Broadleaf Evergreen
Deciduous
Needled Evergreen
Semi-evergreen

Penstemon canescens: Leaf Color

spa
Green

Penstemon canescens: Leaf Type

Compound (Pinnately , Bipinnately, Palmately)
Fronds
Needles
Sheath
Simple

Penstemon canescens: Leaf Arrangement

Alternate
Opposite
Other/more complex
Rosulate
Whorled

Penstemon canescens: Leaf Shape

Acicular
Auriculate
Cordate
Cuneate
Deltoid
Elliptical
Filiform
Lanceolate
Linear
Oblanceolate
Oblong
Obovate
Obtuse
Orbicular
Ovate
Palmasect
Palmatifid
Peltate
Pinnatifid
Pinnatisect
Reniform
Rhomboidal
Spatulate
Subcordate
Subulate

Penstemon canescens: Leaf Margin

Crenate
Crenulate
Dentate
Denticulate
Doubly Crenate
Doubly Dentate
Doubly Serrate
Entire
Lobed
Serrate
Sinuate
Undulate

Penstemon canescens: Hairs Present

No
Yes

Penstemon canescens: Leaf Length

< 1 inch
1-3 inches
3-6 inches
> 6 inches

Penstemon canescens: Leaf Width

< 1 inch
1-3 inches
3-6 inches
> 6 inches

Penstemon canescens Stem

Penstemon canescens: Stem Description

Hairy green stems

Penstemon canescens: Stem Is Aromatic

No
Yes

Penstemon canescens: Stem Surface

Corky Ridges
Covered with a powdery bloom (glaucous)
Dull
Hairy (pubescent)
Polished
Smooth (glabrous)

Penstemon canescens Whole Plant Traits

Penstemon canescens: Plant Type

Annual
Bulb
Carnivorous
Edible
Epiphyte
Fern
Ground Cover
Herb
Herbaceous Perennial
Houseplant
Mushroom
Native Plant
Ornamental Grasses and Sedges
Perennial
Poisonous
Rose
Shrub
Succulent
Tree
Turfgrass
Vegetable
Vine
Water Plant
Weed
Wildflower

Penstemon canescens: Woody Plant Leaf Characteristics

Broadleaf Evergreen
Deciduous
Needled Evergreen
Semi-evergreen

Penstemon canescens: Maintenance

Low
Medium
High

Penstemon canescens Cultural Conditions

Penstemon canescens: Light

Dappled Sunlight (Shade through upper canopy all day)
Deep shade (Less than 2 hours to no direct sunlight)
Full sun (6 or more hours of direct sunlight a day)
Partial Shade (Direct sunlight only part of the day, 2-6 hours)

Penstemon canescens: Soil Drainage

Frequent Standing Water
Good Drainage
Moist
Occasional Flooding
Occasionally Dry
Occasionally Wet
Very Dry

Penstemon canescens: NC Region

Coastal
Mountains
Piedmont

Penstemon canescens: USDA Plant Hardiness Zone

thermostat
5a
thermostat
5b
thermostat
6a
thermostat
6b
thermostat
7a
thermostat
7b
thermostat
8a
thermostat
8b

Penstemon canescens Landscape

Penstemon canescens: Landscape Theme

Asian Garden
Butterfly Garden
Children's Garden
Cottage Garden
Cutting Garden
Drought Tolerant Garden
Edible Garden
English Garden
Fairy Garden
Garden for the Blind
Native Garden
Nighttime Garden
Pollinator Garden
Rain Garden
Rock Garden
Shade Garden
Water Garden
Winter Garden

Penstemon canescens: Design Feature

Accent
Barrier
Border
Flowering Tree
Foundation Planting
Hedge
Mass Planting
Screen/Privacy
Security
Shade Tree
Small groups
Small Tree
Specimen
Street Tree
Understory Tree

Penstemon canescens: Resistance To Challenges

Black Walnut
Compaction
Deer
Diseases
Drought
Dry Soil
Erosion
Fire
Foot Traffic
Heat
Heavy Shade
Humidity
Insect Pests
Pollution
Poor Soil
Rabbits
Salt
Slugs
Squirrels
Storm damage
Urban Conditions
Voles
Wet Soil
Wind

Penstemon canescens: Landscape Location

Coastal
Container
Hanging Baskets
Houseplants
Lawn
Meadow
Naturalized Area
Near Septic
Patio
Pond
Pool/Hardscape
Recreational Play Area
Riparian
Rock Wall
Slope/Bank
Small Space
Vertical Spaces
Walkways
Woodland

Penstemon canescens: Attracts

Bats
Bees
Butterflies
Frogs
Hummingbirds
Moths
Pollinators
Predatory Insects
Reptiles
Small Mammals
Songbirds
Specialized Bees