North America Native Plant

Great Basin Brome

Botanical name: Bromus polyanthus

USDA symbol: BRPO

Life cycle: perennial

Habit: grass

Native status: Native to Canada âš˜ Native to the lower 48 states  

Great Basin Brome: A Hardy Native Grass for Western Gardens If you’re looking to add some authentic western charm to your landscape while supporting local ecosystems, Great Basin brome (Bromus polyanthus) might just be the unsung hero your garden needs. This perennial native grass brings both beauty and ecological benefits ...

Great Basin Brome: A Hardy Native Grass for Western Gardens

If you’re looking to add some authentic western charm to your landscape while supporting local ecosystems, Great Basin brome (Bromus polyanthus) might just be the unsung hero your garden needs. This perennial native grass brings both beauty and ecological benefits to gardens across the American West, proving that sometimes the best plants are the ones that have been thriving in your region for centuries.

What Makes Great Basin Brome Special?

Great Basin brome is a true native, calling both Canada and the lower 48 states home. This hardy perennial grass has adapted to life across an impressive range of western territories, naturally occurring from British Columbia down through Arizona, California, Colorado, Idaho, Montana, Nevada, New Mexico, Oregon, Texas, Utah, Washington, and Wyoming. That’s quite the geographic resume!

As a perennial grass, Great Basin brome returns year after year, making it a reliable foundation plant for sustainable landscaping. Its fine-textured foliage and delicate seed heads add subtle movement and texture to garden spaces, creating that coveted dancing in the breeze effect that makes prairie and native gardens so captivating.

Why Plant Great Basin Brome?

There are plenty of compelling reasons to consider this native grass for your landscape:

  • True Native Heritage: As a plant that evolved in western North America, it’s perfectly adapted to local conditions and supports native wildlife
  • Low Maintenance: Once established, this drought-tolerant grass requires minimal care and watering
  • Ecosystem Support: Provides valuable habitat and nesting materials for native bees and other beneficial insects
  • Erosion Control: Excellent for stabilizing slopes and preventing soil erosion
  • Versatile Design Element: Works beautifully in prairie gardens, xeriscapes, and naturalized areas

Growing Great Basin Brome Successfully

The beauty of native plants like Great Basin brome lies in their adaptability to local conditions. This grass thrives in USDA hardiness zones 4-8, making it suitable for most western gardeners.

Ideal Growing Conditions

Great Basin brome prefers:

  • Sunlight: Full sun to partial shade
  • Soil: Well-drained soils of various types
  • Water: Drought-tolerant once established, minimal irrigation needed
  • Climate: Adapted to western climates with dry summers

Planting and Care Tips

Getting Great Basin brome established in your garden is refreshingly straightforward:

  • Best Planting Time: Direct seed in fall for best results
  • Establishment: Provide regular water during the first growing season, then reduce significantly
  • Maintenance: Extremely low maintenance once established
  • Spacing: Allow adequate space for natural clumping growth habit

Perfect Garden Companions

Great Basin brome works beautifully as part of a native plant community. Consider pairing it with other western natives like:

  • Native wildflowers for color contrast
  • Other native bunch grasses for textural variety
  • Native shrubs as backdrop plants
  • Drought-tolerant perennials for seasonal interest

The Bottom Line

Great Basin brome represents everything wonderful about native gardening: it’s beautiful, functional, sustainable, and supports local wildlife. While it may not be the flashiest plant in the garden center, this reliable perennial grass offers the kind of steady, understated beauty that forms the backbone of truly successful native landscapes.

For gardeners in its native range, Great Basin brome is an excellent choice for creating authentic, low-maintenance landscapes that celebrate the natural heritage of the American West. It’s proof that sometimes the best gardening choices are the ones nature has been making all along.

Great Basin Brome

Classification

Group

Monocot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Liliopsida - Monocotyledons

Subclass

Commelinidae

Order

Cyperales

Family

Poaceae Barnhart - Grass family

Genus

Bromus L. - brome

Species

Bromus polyanthus Scribn. ex Shear - Great Basin brome

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA