Species PlantsScarlet Bugler

Scarlet Bugler

Penstemon barbatus

CommonPlant
Illustration of Scarlet Bugler (Penstemon barbatus)

Scarlet Bugler is one of the most widespread and hummingbird-adapted penstemons of the Rocky Mountain region, sending up tall, open racemes of brilliant red tubular flowers from June through September. Its flowers have evolved a nearly bilateral symmetry that positions visiting hummingbirds to pick up and deposit pollen on their foreheads. It grows across a broad elevation range from desert grasslands to subalpine meadows. The extended bloom season makes it one of the most important summer nectar sources for rufous hummingbirds migrating south through the Rockies.

Habitat
Dry slopes, meadows, open woodlands, and canyon walls from desert grasslands to subalpine zones in the central Rocky Mountains.
Diet
Red tubular flowers pollinated almost exclusively by hummingbirds; one of the top nectar sources for migrating rufous hummingbirds.
How common
Common

Best time to see a Scarlet Bugler

The best time to see a Scarlet Bugler is June–July, when about 68% of U.S. sightings happen, based on 4,898 research-grade iNaturalist observations.

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