How much sun does Eriocoma hymenoides need?

Eriocoma hymenoides grows best in full sun conditions.

When does Eriocoma hymenoides bloom?

Eriocoma hymenoides blooms in May, June, and July.

Where is Eriocoma hymenoides native?

Eriocoma hymenoides is native to AR, AZ, CA, CO and 15 more states, per vouchered herbarium specimen records and regional native plant society lists.

Eriocoma hymenoides

Name: Pollinator Patch
Author: Pollinator Patch

Last reviewed: September 2026

Eriocoma hymenoides is a perennial grass native to AR, AZ, CA, CO and 15 more states. It blooms in May, June, and July.

Toxicity unknown

Eriocoma hymenoides 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

low

Size

12"–24" H × 12"–18" W

Bloom

May, Jun, Jul

Native to

AR, AZ, CA, CO and 15 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 458 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

Sierra Nevada Central California Foothills and Coastal Mountains Central California Valley Southern California Mountains Northwestern Forested Mountains North American Deserts Central Basin and Range Mojave Basin and Range Southern Rockies Arizona/New Mexico Mountains Chihuahuan Deserts High Plains Southwestern Tablelands Northwestern Glaciated Plains Northwestern Great Plains Great Plains Sonoran Basin and Range Southern California/Northern Baja Coast

A fine-textured bunchgrass with thin, wiry blades and an airy, open panicle of small seeds on delicate branching stems. Grows on dry, sandy and rocky soils across arid rangeland and desert grassland.

Growing Eriocoma hymenoides

Grow Eriocoma hymenoides in full sun and low water. Mature plants reach 12 to 24 inches tall and spread 12 to 18 inches wide.

Wildlife value

The nutritious seeds are an important food source for small mammals and birds, and the fine foliage was historically a staple grain for indigenous communities.

Common questions

How much sun does Eriocoma hymenoides need?: Eriocoma hymenoides grows best in full sun conditions.
When does Eriocoma hymenoides bloom?: Eriocoma hymenoides blooms in May, June, and July.
Where is Eriocoma hymenoides native?: Eriocoma hymenoides is native to AR, AZ, CA, CO and 15 more states, per vouchered herbarium specimen records and regional native plant society lists.

Native range data from vouchered herbarium specimen records and regional native plant society lists. 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 Eriocoma hymenoides? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.

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