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Penstemon davidsonii (Davidson's penstemon)
Vick, Albert F. W.

Penstemon davidsonii

Penstemon davidsonii Greene

Davidson's Penstemon, Davidson's Beardtongue, Timberline Penstemon, Timberline Beardtongue, Alpine Penstemon, Alpine Beardtongue, Blue Color Mat

Scrophulariaceae (Figwort Family)


USDA Symbol: PEDA2

USDA Native Status: L48 (N), CAN (N)

A flat, mat-forming perennial with flowering branches less than 4 in. high. The thick, round leaves are dark green, sometimes red-tinged. A matted plant with a woody base and stems, opposite, crowded leaves, and blue-lavender, bilaterally symmetrical flowers clustered on short erect stems. The short flowering branches usually bear 2-4 blue-purple to rose-purple flowers that seem unusually large for such a matted plant.

When in full flower, this species forms spectacular lavender mats. Plants in the southern part of the range have toothless leaves; to the north, toothed leaves are common.


From the Image Gallery

4 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Perennial
Habit: Herb
Size Class: 0-1 ft.

Bloom Information

Bloom Color: Purple
Bloom Time: Jul , Aug


USA: CA , NV , OR , WA
Canada: BC
Native Distribution: S. B.C. to Tulare Co., CA & NV
Native Habitat: Rocky, alpine & sub-alpine woods & fields

Growing Conditions

Light Requirement: Sun
Soil Description: Well-drained soil with some summer water.
Conditions Comments: Must have winter snowcover.


Use Wildlife: Hummingbirds
Attracts: Hummingbirds

Value to Beneficial Insects

Special Value to Native Bees

This information was provided by the Pollinator Program at The Xerces Society for Invertebrate Conservation.


Description: Propagate using half-woody cuttings or seed.
Seed Collection: Not Available
Seed Treatment: 1-2 months stratification is necessary.
Commercially Avail: yes

Find Seed or Plants

View propagation protocol from Native Plants Network.

Additional resources

USDA: Find Penstemon davidsonii in USDA Plants
FNA: Find Penstemon davidsonii in the Flora of North America (if available)
Google: Search Google for Penstemon davidsonii


Record Modified: 2014-07-17
Research By: TWC Staff

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