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Utah Milkvetch

Astragalus utahensis

Last reviewed: August 2026

Utah Milkvetch (Astragalus utahensis)
Photo: (c) Ellen Eiriksson, some rights reserved (CC BY), uploaded by Ellen Eiriksson

Utah Milkvetch (Astragalus utahensis) 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 × 4"–12" W

Bloom

May, Jun, Jul

Native to

ID, NV, UT, WY

Pollinators

bees, butterflies

Before you buy

Your city may pay you to plant this

Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 452 programs across 44 states, each with a link to the provider and the date we last checked it.

Find rebates in your area

Utah milkvetch is a compact native wildflower that forms neat, low mounds of silvery-green foliage. This drought-tolerant perennial produces clusters of small pea-like flowers in shades of purple or white during late spring and summer.

In an HOA neighborhood

Utah Milkvetch takes more care to keep looking intentional in a front yard. Maintenance level: low. Consider it for backyard or mid-zone beds rather than the street edge.

Works well in: backyard only.

  • May look weedy or unkempt to conventional gardeners
  • Unknown leaf retention could mean messy dormant appearance
  • Wildflower appearance conflicts with formal landscaping expectations

Wildlife value

The flowers attract native bees and butterflies during its extended bloom period from May through July. As a legume, it also helps fix nitrogen in the soil.

Common questions

How much sun does Utah Milkvetch need?
Utah Milkvetch grows best in full sun conditions.
When does Utah Milkvetch bloom?
Utah Milkvetch blooms in May, June, and July.
Where is Utah Milkvetch native?
Utah Milkvetch (Astragalus utahensis) is native to ID, NV, UT, WY, per vouchered herbarium specimen records and regional native plant society lists.
Is Utah Milkvetch toxic to dogs?
Utah Milkvetch is not on the ASPCA Animal Poison Control Center toxic plant list for dogs (aspca.org).
Is Utah Milkvetch toxic to cats?
Utah Milkvetch is not on the ASPCA Animal Poison Control Center toxic plant list for cats (aspca.org).
What pollinators does Utah Milkvetch attract?
Utah Milkvetch draws bees and butterflies.
Is Utah Milkvetch HOA-friendly?
Utah Milkvetch takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

Native range data from vouchered herbarium specimen records and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

If something looks wrong

Common plant problems, and what to check first

These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.

See all plant problem guides

Ready to grow Utah Milkvetch? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.

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