// SPECIES PROFILE · PERENNIAL · NATIVE

Prairie ironweed

Vernonia fasciculata ssp. corymbosa

Prairie ironweed (Vernonia fasciculata ssp. corymbosa) is a perennial in the — family. Native range includes AR, KS, MO, OK. Hardy in zones 2a–7a. Mature size 6"–4'. Blooms Jul–Sep.

// QUICK FACTS

Family: —
Group: perennial
Native range: Native to 19 U.S. states, including AR, CO, IA, IL, IN, KS…
USDA hardiness: Zones 2a–7a
Mature size: 6"–4'
Sun: Part shade
Water: —
Bloom: Jul–Sep
Wildlife value: Pollinator and wildlife support
Ecological role: native species profile

Prairie ironweed (Vernonia fasciculata ssp. corymbosa) — *Vernonia fasciculata ssp. corymbosa* — Prairie ironweed. Photo via iNaturalist — (c) Joshua Mayer, some rights reserved (CC BY-SA).

Field Notes

[ growing · ecology · siting · care ]

Prairie ironweed (Vernonia fasciculata ssp. corymbosa) is a perennial in the — family. Native range includes AR, KS, MO, OK. Hardy in zones 2a–7a. Mature size 6"–4'. Blooms Jul–Sep.

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 ironweed pairs naturally with: Broadleaf Arrowhead (Sagittaria latifolia), Gray Goldenrod (Solidago nemoralis), Lady Fern (Athyrium filix-femina), Maximilian Sunflower (Helianthus maximiliani).