// SPECIES PROFILE · PERENNIAL · NATIVE

Prairie milkweed

Asclepias sullivantii

Prairie milkweed (Asclepias sullivantii) is a perennial in the — family. Native range includes AR, KS, MO, OK. Hardy in zones 2b–8a. Mature size 6"–3'. Blooms Jun–Aug.

// QUICK FACTS

Family: —
Group: perennial
Native range: Native to 14 U.S. states, including AR, IA, IL, IN, KS, MI…
USDA hardiness: Zones 2b–8a
Mature size: 6"–3'
Sun: Full sun
Water: Medium
Bloom: Jun–Aug
Wildlife value: Pollinator and wildlife support
Ecological role: native species profile

Prairie milkweed (Asclepias sullivantii) — *Asclepias sullivantii* — Prairie milkweed. Photo by gmayfield10 via Wikimedia Commons (CC BY-SA 2.0).

Field Notes

[ growing · ecology · siting · care ]

Prairie milkweed (Asclepias sullivantii) is a perennial in the — family. Native range includes AR, KS, MO, OK. Hardy in zones 2b–8a. Mature size 6"–3'. Blooms Jun–Aug.

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 milkweed pairs naturally with: Broadleaf Arrowhead (Sagittaria latifolia), Common Blue Violet (Viola sororia), Common Boneset (Eupatorium perfoliatum), Common Evening Primrose (Oenothera biennis).