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// SPECIES PROFILE · PERENNIAL · NATIVE

Purple milkvetch

Astragalus agrestis

Purple milkvetch (Astragalus agrestis) is a perennial in the — family. Native range includes KS — verified against the Lady Bird Johnson Wildflower Center native distribution database. Hardy in zones 2a–11a. Mature size 6"–1'. Blooms May–Aug.

// QUICK FACTS
Family
—
Group
perennial
Native range
Native to 17 U.S. states, including CA, CO, IA, ID, IL, KS…
USDA hardiness
Zones 2a–11a
Mature size
6"–1'
Sun
Full sun
Water
Low · xeric
Bloom
May–Aug
Wildlife value
Pollinator and wildlife support
Ecological role
native species profile
Purple milkvetch (Astragalus agrestis)
Astragalus agrestis — Purple milkvetch. Photo via Wikimedia Commons.

Field Notes

[ growing · ecology · siting · care ]

Purple milkvetch (Astragalus agrestis) is a perennial in the — family. Native range includes KS — verified against the Lady Bird Johnson Wildflower Center native distribution database. Hardy in zones 2a–11a. Mature size 6"–1'. Blooms May–Aug. Low water use makes it a strong candidate for xeric and drought-conscious plantings.

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

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