// SPECIES PROFILE · PERENNIAL · NATIVE

Plains onion

Allium perdulce

Plains onion (Allium perdulce) is a perennial in the — family. Native range includes KS, OK. Hardy in zones 3b–10a. Mature size 1"–8". Blooms Mar–Jun.

// QUICK FACTS

Family: —
Group: perennial
Native range: Native to IA, KS, NE, NM, OK, SD, TX
USDA hardiness: Zones 3b–10a
Mature size: 1"–8"
Sun: —
Water: —
Bloom: Mar–Jun
Wildlife value: Pollinator and wildlife support
Ecological role: native species profile

Plains onion (Allium perdulce) — *Allium perdulce* — Plains onion. Photo via iNaturalist — (c) Elliott Gordon, some rights reserved (CC BY).

Field Notes

[ growing · ecology · siting · care ]

Plains onion (Allium perdulce) is a perennial in the — family. Native range includes KS, OK. Hardy in zones 3b–10a. Mature size 1"–8". Blooms Mar–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, plains onion pairs naturally with: Aromatic Aster (Symphyotrichum oblongifolium), Broadleaf Arrowhead (Sagittaria latifolia), Butterfly Milkweed (Asclepias tuberosa), Carolina Larkspur (Delphinium carolinianum).