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Pumpelly'S Brome

Bromus pumpellianus

Last reviewed: August 2026

Pumpelly'S Brome (Bromus pumpellianus)
Photo: National Museum of Natural History / Wikimedia Commons (CC0)

Toxicity unknown

Pumpelly'S Brome (Bromus pumpellianus) 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

medium

Size

12"–36" H × 6"–18" W

Bloom

May, Jun, Jul

Native to

CO, ID, MA, ME and 7 more states

Before you buy

Your city may pay you to plant this

Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 452 programs across 44 states, each with a link to the provider and the date we last checked it.

Find rebates in your area

Bromus pumpellianus is a native perennial bunchgrass that forms compact clumps in full sun locations. This medium-sized grass produces seed heads from May through July and goes dormant in winter, losing its leaves seasonally.

In an HOA neighborhood

Pumpelly'S 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.

  • Bromus genus often associated with weedy species
  • May appear unkempt during dormancy
  • Seed heads can look wild or unmanicured

Wildlife value

This native grass provides seeds for birds and small wildlife. As a bunchgrass, it offers nesting habitat and shelter for ground-dwelling creatures.

Common questions

How much sun does Pumpelly'S Brome need?
Pumpelly'S Brome grows best in full sun conditions.
When does Pumpelly'S Brome bloom?
Pumpelly'S Brome blooms in May, June, and July.
Where is Pumpelly'S Brome native?
Pumpelly'S Brome (Bromus pumpellianus) is native to CO, ID, MA, ME and 7 more states, per the World Checklist of Vascular Plants (Kew).
Is Pumpelly'S Brome HOA-friendly?
Pumpelly'S 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 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 Pumpelly'S Brome? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.

Planning a bed around it? Start a free plan with this plant

Not sure where to start? Take the 2-minute yard quiz