// SPECIES PROFILE · GRASS · NATIVE

Prairie junegrass

Koeleria macrantha

Prairie junegrass (Koeleria macrantha) is a grass in the — family. Native range includes AR, KS, MO, OK. Hardy in zones 1a–13a. Mature size 6"–4'. Blooms Apr–Jun.

// QUICK FACTS

Family: —
Group: grass
Native range: Native to 38 U.S. states, including AK, AL, AR, AZ, CA, CO…
USDA hardiness: Zones 1a–13a
Mature size: 6"–4'
Sun: Full sun
Water: High · moisture-loving
Bloom: Apr–Jun
Wildlife value: Pollinator and wildlife support
Ecological role: native species profile

Prairie junegrass (Koeleria macrantha) — *Koeleria macrantha* — Prairie junegrass. Photo by Don Pedro28 via Wikimedia Commons (CC BY-SA 3.0).

Field Notes

[ growing · ecology · siting · care ]

Prairie junegrass (Koeleria macrantha) is a grass in the — family. Native range includes AR, KS, MO, OK. Hardy in zones 1a–13a. Mature size 6"–4'. Blooms Apr–Jun.

Why it's on this list: native species profile. Native-range data from the Lady Bird Johnson Wildflower Center (NPIN), cross-checked against iNaturalist observations. Part of Rooted Revival's regional native plant catalog — true natives for Oklahoma, Arkansas, Missouri and Kansas.

Companion Planting

[ guild · polyculture · cross-layer pairings ]

In the same native range, prairie junegrass pairs naturally with: Broadleaf cattail (Typha latifolia), Toad rush (Juncus bufonius), Toad rush (Juncus bufonius var. bufonius), Softstem bulrush (Schoenoplectus tabernaemontani).