// SPECIES PROFILE · ANNUAL · NATIVE

Purple milkwort

Polygala sanguinea

Purple milkwort (Polygala sanguinea) is a annual in the — family. Native range includes AR, KS, MO, OK. Hardy in zones 2b–10a. Mature size 1"–16". Blooms Jun–Oct.

// QUICK FACTS

Family: —
Group: annual
Native range: Native to 37 U.S. states, including AL, AR, CT, DC, DE, GA…
USDA hardiness: Zones 2b–10a
Mature size: 1"–16"
Sun: Full sun
Water: —
Bloom: Jun–Oct
Wildlife value: Pollinator and wildlife support
Ecological role: native species profile

Purple milkwort (Polygala sanguinea) — *Polygala sanguinea* — Purple milkwort. Photo by Mason Brock (Masebrock) via Wikimedia Commons (Public domain).

Field Notes

[ growing · ecology · siting · care ]

Purple milkwort (Polygala sanguinea) is a annual in the — family. Native range includes AR, KS, MO, OK. Hardy in zones 2b–10a. Mature size 1"–16". Blooms Jun–Oct.

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, purple milkwort pairs naturally with: Black-Eyed Susan (Rudbeckia hirta), Common Sunflower (Helianthus annuus), Swamp verbena (Verbena hastata), Slenderleaf false foxglove (Agalinis tenuifolia).