Missouri Milk-vetch
Astragalus missouriensis
Last reviewed: June 2026
Missouri Milk-vetch (Astragalus missouriensis) is not on the ASPCA Animal Poison Control Center toxic plant list for dogs or cats (aspca.org (opens in new tab), last reviewed 2026-05-21). If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.
Light
full sun
Water
low
Size
4"–12" H × 6"–18" W
Bloom
May, Jun
Native to
AZ, CO, IA, KS and 10 more states
Pollinators
bees, butterflies
Browse plants for this ecoregion
Missouri milk-vetch is a low-growing native wildflower that forms compact clumps with silvery-green foliage and small purple flowers in late spring. This drought-tolerant perennial stays neat and tidy throughout the growing season, making it suitable for xeriscaping and low-maintenance gardens.
In an HOA neighborhood
Missouri Milk-vetch is an HOA-friendly choice. Maintenance level: low. Tidiness: 4 out of 5.
Works well in: front yard, foundation, street edge, mid zone.
- May go dormant in extreme heat
- Slow to establish in first year
Wildlife value
The flowers attract native bees and butterflies during its May to June bloom period. As a legume, it also helps improve soil nitrogen levels naturally.
Common questions
- How much sun does Missouri Milk-vetch need?
- Missouri Milk-vetch grows best in full sun conditions.
- When does Missouri Milk-vetch bloom?
- Missouri Milk-vetch blooms in May and June.
- Where is Missouri Milk-vetch native?
- Missouri Milk-vetch (Astragalus missouriensis) is native to AZ, CO, IA, KS and 10 more states, per the USDA PLANTS Database and regional native plant society lists.
- Is Missouri Milk-vetch toxic to dogs?
- Missouri Milk-vetch is not on the ASPCA Animal Poison Control Center toxic plant list for dogs (aspca.org).
- Is Missouri Milk-vetch toxic to cats?
- Missouri Milk-vetch is not on the ASPCA Animal Poison Control Center toxic plant list for cats (aspca.org).
- What pollinators does Missouri Milk-vetch attract?
- Missouri Milk-vetch draws bees and butterflies.
- Is Missouri Milk-vetch HOA-friendly?
- Missouri Milk-vetch is generally an HOA-friendly choice in the right placement, with low maintenance.
Native range data from the USDA PLANTS Database and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
Ready to grow Missouri Milk-vetch? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.
Not sure where to start? Take the 2-minute yard quiz