// SPECIES PROFILE · PERENNIAL · NATIVE

Twogrooved milkvetch

Astragalus bisulcatus

Twogrooved milkvetch (Astragalus bisulcatus) is a perennial in the — family. Native range includes KS, OK. Hardy in zones 2a–10b. Mature size 17"–2'. Blooms Apr–Jul.

// QUICK FACTS

Family: —
Group: perennial
Native range: Native to 13 U.S. states, including AZ, CO, ID, KS, MT, ND…
USDA hardiness: Zones 2a–10b
Mature size: 17"–2'
Sun: —
Water: —
Bloom: Apr–Jul
Wildlife value: Pollinator and wildlife support
Ecological role: native species profile

Twogrooved milkvetch (Astragalus bisulcatus) — *Astragalus bisulcatus* — Twogrooved milkvetch. Photo by Dave Powell via Wikimedia Commons (Public domain).

Field Notes

[ growing · ecology · siting · care ]

Twogrooved milkvetch (Astragalus bisulcatus) is a perennial in the — family. Native range includes KS, OK. Hardy in zones 2a–10b. Mature size 17"–2'. Blooms Apr–Jul.

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, twogrooved milkvetch pairs naturally with: Broadleaf Arrowhead (Sagittaria latifolia), Lady Fern (Athyrium filix-femina), Sneezeweed (Helenium autumnale), Wild Strawberry (Fragaria virginiana).