When does beardless wild rye bloom?

Elymus triticoides typically flowers from May through July, producing slender, wind-pollinated seed heads that mature by midsummer.

What growing conditions does Elymus triticoides need?

This grass does best in full sun and handles soil moisture ranging from occasional flooding to sustained dry spells, which makes it a good fit for meadow restoration, erosion control and low-water landscaping.

Do bees and beetles visit Elymus triticoides?

Bees and beetles are known to visit the plant, though like most grasses it relies primarily on wind for pollination rather than insect activity.

Is beardless wild rye evergreen?

No. It is a deciduous perennial grass that dies back to the root crown each winter and resprouts from the base in spring.

Beardless wild rye

Name: Pollinator Patch
Author: Pollinator Patch

Leymus triticoides

Last reviewed: October 2026

Elymus triticoides, or beardless wild rye, is a low-water bunchgrass that blooms from May through July in western meadows, floodplains and alkaline flats, thriving in full sun with little irrigation once established.

Toxicity unknown

Beardless wild rye (Leymus triticoides) 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

18"–48" H × 24"–60" W

Bloom

May, Jun, Jul

Native to

AZ, CA, CO, ID and 8 more states

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Rhizomatous perennial grass with blue-green blades that spreads to form dense colonies, sending up narrow bristly seed heads in early summer. Common in moist meadows, alkaline flats, and floodplains, where it is useful for erosion control.

Growing Beardless wild rye

Grow Beardless wild rye in full sun and medium water. Mature plants reach 18 to 48 inches tall and spread 24 to 60 inches wide.

Wildlife value

Seeds and foliage provide food and cover for grassland birds and small mammals.

Common questions

When does beardless wild rye bloom?: Elymus triticoides typically flowers from May through July, producing slender, wind-pollinated seed heads that mature by midsummer.
What growing conditions does Elymus triticoides need?: This grass does best in full sun and handles soil moisture ranging from occasional flooding to sustained dry spells, which makes it a good fit for meadow restoration, erosion control and low-water landscaping.
Do bees and beetles visit Elymus triticoides?: Bees and beetles are known to visit the plant, though like most grasses it relies primarily on wind for pollination rather than insect activity.
Is beardless wild rye evergreen?: No. It is a deciduous perennial grass that dies back to the root crown each winter and resprouts from the base in spring.

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.

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Common plant problems, and what to check first

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