Where does Pacific Woodrush grow naturally?

Luzula comosa is native to 12 western states including Arizona, California, Colorado, Idaho, Montana, New Mexico, Nevada, Oregon, South Dakota, Utah, Washington, and Wyoming.

When does Pacific Woodrush bloom?

Pacific Woodrush produces its flower clusters from April through June, typically in late spring to early summer.

What growing conditions does Pacific Woodrush prefer?

This woodrush thrives in partial shade to full shade with medium moisture levels, making it well-suited for woodland gardens and naturalized areas.

Is Pacific Woodrush really a grass?

While Luzula comosa has grass-like appearance, it belongs to the rush family (Juncaceae) rather than the true grass family, distinguished by its three-petaled flowers and different leaf structure.

Is Pacific Woodrush HOA-friendly?

Pacific Woodrush is generally an HOA-friendly choice in the right placement, with low maintenance.

Pacific Woodrush

Name: Pollinator Patch
Author: Pollinator Patch

Luzula comosa

Last reviewed: August 2026

Luzula comosa (Pacific Woodrush) is a native grass-like perennial found across western North America from Arizona to Washington. This shade-tolerant plant blooms April through June with small brown flower clusters.

Toxicity unknown

Pacific Woodrush (Luzula comosa) 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

part shade

Water

medium

Size

6"–24" H × 4"–12" W

Bloom

Apr, May, Jun

Native to

AZ, CA, CO, ID and 8 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 445 programs across 44 states, each with a link to the provider and the date we last checked it.

Find rebates in your area

Browse plants for this ecoregion

Coast Range Puget Lowland Marine West Coast Forest Northwestern Forested Mountains Sierra Nevada Central California Foothills and Coastal Mountains Southern California Mountains North American Deserts Southern California/Northern Baja Coast

Pacific woodrush is a compact evergreen grass-like perennial that forms neat clumps of dark green foliage. It produces delicate clusters of small brown flowers in spring and maintains an attractive, tidy appearance year-round.

Growing Pacific Woodrush

Grow Pacific Woodrush in part shade and medium water. Mature plants reach 6 to 24 inches tall and spread 4 to 12 inches wide. Expect low maintenance to keep it looking intentional in a front yard.

In an HOA neighborhood

Pacific Woodrush is an HOA-friendly choice. Maintenance level: low. Tidiness: 4 out of 5.

Works well in: front yard, foundation, street edge, mid zone.

Wildlife value

This native sedge provides habitat and food for small wildlife and birds, though it is not a major pollinator plant.

Common questions

Where does Pacific Woodrush grow naturally?: Luzula comosa is native to 12 western states including Arizona, California, Colorado, Idaho, Montana, New Mexico, Nevada, Oregon, South Dakota, Utah, Washington, and Wyoming.
When does Pacific Woodrush bloom?: Pacific Woodrush produces its flower clusters from April through June, typically in late spring to early summer.
What growing conditions does Pacific Woodrush prefer?: This woodrush thrives in partial shade to full shade with medium moisture levels, making it well-suited for woodland gardens and naturalized areas.
Is Pacific Woodrush really a grass?: While Luzula comosa has grass-like appearance, it belongs to the rush family (Juncaceae) rather than the true grass family, distinguished by its three-petaled flowers and different leaf structure.
Is Pacific Woodrush HOA-friendly?: Pacific Woodrush is generally an HOA-friendly choice in the right placement, with low maintenance.

These answers were drafted with an AI model from this plant's data. Verify care details with a local expert.

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

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

Add this plant to your garden

iPhone app Android app

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