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Cordroot beardtongue

Penstemon montanus

Last reviewed: October 2026

Cordroot beardtongue (Penstemon montanus) is a perennial forb native to ID, MT, UT, WY. It blooms in June, July, and August. The flowers draw native bees and bumble bees.

Cordroot beardtongue (Penstemon montanus)
Photo: (c) Matt Lavin, some rights reserved (CC BY)

Toxicity unknown

Cordroot beardtongue (Penstemon montanus) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.

Light

full sun

Water

low

Size

4"–10" H × 8"–16" W

Bloom

Jun, Jul, Aug

Native to

ID, MT, UT, WY

Pollinators

native bees, bumble bees

Before you buy

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Picture natives in your own yard

Upload a photo of your yard and Patch Vision shows a rendering of it planted with natives for your region, like Cordroot beardtongue.

A low, mat-forming perennial with narrow leaves and showy lavender-purple tubular flowers held just above the foliage. It grows tucked into rocky crevices on high, exposed slopes.

Growing Cordroot beardtongue

Grow Cordroot beardtongue in full sun and low water. Mature plants reach 4 to 10 inches tall and spread 8 to 16 inches wide.

Wildlife value

Its tubular flowers are a nectar source for bumble bees and other native bees at high elevation.

Common questions

How much sun does Cordroot beardtongue need?
Cordroot beardtongue grows best in full sun conditions.
When does Cordroot beardtongue bloom?
Cordroot beardtongue blooms in June, July, and August.
Where is Cordroot beardtongue native?
Cordroot beardtongue (Penstemon montanus) is native to ID, MT, UT, WY, per the World Checklist of Vascular Plants (Kew).
What pollinators does Cordroot beardtongue attract?
Cordroot beardtongue draws native bees and bumble bees.

Native range data from the World Checklist of Vascular Plants (Kew). Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

If something looks wrong

Common plant problems, and what to check first

These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.

See all plant problem guides

Ready to grow Cordroot beardtongue? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.