Where does Sweet Brome naturally grow?

Sweet Brome is native to California, Colorado, Illinois, Kansas, New Mexico, Oregon, Texas, and Washington, typically growing in grasslands, meadows, and open woodlands.

When does Bromus carinatus bloom?

Sweet Brome produces flowers from May through July, with seed heads developing through late summer.

What pollinators visit Sweet Brome?

While Sweet Brome is wind-pollinated like most grasses, its flowers and seeds attract various native bee species that use the plant for nesting materials and habitat.

Is Sweet Brome toxic to livestock?

The USDA PLANTS Database does not flag Sweet Brome as toxic to livestock.

Is Sweet Brome HOA-friendly?

Sweet Brome takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

Sweet Brome

Name: Pollinator Patch
Author: Pollinator Patch

Bromus carinatus

Last reviewed: June 2026

Bromus carinatus (Sweet Brome) is a native perennial grass found across western and central United States. This drought-tolerant species blooms May through July and provides important habitat for native bees.

Sweet Brome (Bromus carinatus) — Photo: Lockeford Plant Materials Center (CAPMC) / Wikimedia Commons (Public domain)

The USDA PLANTS Database (opens in new tab) does not flag Sweet Brome as toxic to livestock.

Light

full sun

Water

medium

Size

12"–48" H × 12"–24" W

Bloom

May, Jun, Jul

Native to

CA, CO, IL, KS and 4 more states

Pollinators

bees

Browse plants for this ecoregion

Coast Range Sierra Nevada Central California Valley Central California Foothills and Coastal Mountains Southern California Mountains Central Basin and Range Mojave Basin and Range Chihuahuan Deserts Sonoran Basin and Range

Sweet brome is a native bunch grass that forms clumps 12-48 inches tall with an upright, fountain-like growth habit. It produces attractive seed heads from May through July and tolerates drought well once established. This perennial grass works well in naturalized areas and mixed plantings.

Growing Sweet Brome

Grow Sweet Brome in full sun and medium water. Mature plants reach 12 to 48 inches tall and spread 12 to 24 inches wide. Expect low maintenance to keep it looking intentional in a front yard.

In an HOA neighborhood

Sweet Brome takes more care to keep looking intentional in a front yard. Maintenance level: low. Consider it for backyard or mid-zone beds rather than the street edge.

Works well in: backyard only.

Tall height may appear unkempt to HOAs
Seed heads can look weedy to conventional tastes
Winter dormancy creates brown appearance for months

Wildlife value

The flowers attract bees and other pollinators during its spring and summer bloom period. Seeds provide food for birds and small wildlife.

Common questions

Where does Sweet Brome naturally grow?: Sweet Brome is native to California, Colorado, Illinois, Kansas, New Mexico, Oregon, Texas, and Washington, typically growing in grasslands, meadows, and open woodlands.
When does Bromus carinatus bloom?: Sweet Brome produces flowers from May through July, with seed heads developing through late summer.
What pollinators visit Sweet Brome?: While Sweet Brome is wind-pollinated like most grasses, its flowers and seeds attract various native bee species that use the plant for nesting materials and habitat.
Is Sweet Brome toxic to livestock?: The USDA PLANTS Database does not flag Sweet Brome as toxic to livestock.
Is Sweet Brome HOA-friendly?: Sweet Brome takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

Native range data from the USDA PLANTS Database and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

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

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