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Penstemon azureus (Azure penstemon)
Bransford, W.D. and Dolphia

Penstemon azureus

Penstemon azureus Benth.

Azure Penstemon, Azure Beardtongue, Sky-blue Penstemon, Sky-blue Beardtongue

Scrophulariaceae (Figwort Family)



USDA Native Status: L48 (N)

The basal stems of this perennial are subwoody and much branched, bearing narrow, blue-green leaves. The 8-20 in., flowering stalks carry many large, strongly two-lipped, blue to purple flowers which are yellow in bud. The plant maintains a neat, tidy habit.

Penstemon azureus attracts hummingbirds.


From the Image Gallery

2 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Perennial
Habit: Herb
Size Class: 1-3 ft.

Bloom Information

Bloom Color: Blue , Purple
Bloom Time: May , Jun , Jul , Aug


Native Distribution: Sierra foothills from Fresno Co., n. to s.w. OR
Native Habitat: Dry, rocky slopes & banks; 3500-7500 ft.

Growing Conditions

Light Requirement: Sun
Soil Moisture: Dry
Soil Description: Well-drained, dry soil.
Conditions Comments: Not Available

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: Seeds germinate without pretreatment.
Commercially Avail: yes

From the National Organizations Directory

According to the species list provided by Affiliate Organizations, this plant is on display at the following locations:

Santa Barbara Botanic Garden - Santa Barbara, CA

Additional resources

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


Record Modified: 2014-09-30
Research By: TWC Staff

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