Species · cool-season grass

Slender wheatgrass

Elymus trachycaulus

Slender wheatgrass (Elymus trachycaulus) is the quick native cool-season bunchgrass: it germinates fast, covers ground in the first season, and tolerates saline and alkaline soils that stop most other natives. It is used as a short-lived nurse crop alongside slower long-lived species.

Category
cool-season grass
Mature height
2–3.5 ft
Bloom window
Seedheads June–July
Moisture
Mesic; tolerates saline and alkaline soils
Seeding rate
2–4 PLS lb/ac in a mix
Seeds per lb
~159,000
Native range
Northern Plains and mountain west — Montana, Wyoming, the Dakotas, Colorado

Why landowners plant slender wheatgrass

  • Fastest-establishing native cool-season grass — first-year erosion control.
  • Tolerates saline and alkaline seeps and reclaimed ground.
  • Short-lived, so it fades as long-lived grasses take over instead of dominating.
  • Good forage quality for authorized grazing and haying.

Site fit

Mesic soils in the northern Plains and intermountain west, including salt-affected areas, roadcuts, and reclaimed sites. Keep rates modest so it does not suppress slower species during establishment.

Establishment

Easy to drill at 1/4 to 1/2 inch. Spring or dormant seeding both work. Emerges within two weeks in cool moist soil and typically produces seed in the first or second year.

Management

Stands thin naturally after five to eight years — plan for long-lived species to take over. Hay or graze after seed set to maintain vigor.

CRP practice fit

CP2

Nurse-grass component of native grass plantings on tough sites.

CP25

Cool-season diversity and quick cover in northern mixes.

CP21

Rapid cover in filter strip seedings.

Featured mixes with slender wheatgrass

Pairs well with

Western wheatgrass · Green needlegrass · Canada wildrye · Blue grama

Frequently asked questions

Why use slender wheatgrass if it is short-lived?

That is the point. It covers bare ground in year one while long-lived grasses build roots, then fades out instead of crowding them.

Does slender wheatgrass tolerate salty soil?

Yes — it is one of the most salt- and alkali-tolerant native grasses available, which makes it standard on saline seeps and reclaimed ground.

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