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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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