Skip to main content

Narrow-Leaved Milk-Vetch

Astragalus pectinatus

Last reviewed: August 2026

Narrow-Leaved Milk-Vetch (Astragalus pectinatus)
Photo: (c) Matt Lavin, some rights reserved (CC BY)

Narrow-Leaved Milk-Vetch (Astragalus pectinatus) 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, Jul

Native to

CO, KS, MT, ND and 3 more states

Pollinators

bees, beetles

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 459 programs across 44 states, each with a link to the provider and the date we last checked it.

Find rebates in your area

Picture natives in your own yard

Upload a photo of your yard and Patch Vision shows a rendering of it planted with natives for your region, like Narrow-Leaved Milk-Vetch.

Astragalus pectinatus is a low-growing native wildflower that forms compact clumps with delicate foliage. This drought-tolerant perennial produces small flowers from May through July and thrives in full sun with minimal water requirements. Its neat, mounded growth habit makes it suitable for xeric gardens and native plant landscapes.

Get an email before your first frost

We'll email you a week before frost can first reach your ZIP. You also get a printable fall checklist with your dates right away.

You'll also get our weekly yard notes. Unsubscribe anytime.

In an HOA neighborhood

Narrow-Leaved Milk-Vetch 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.

  • Appears too wild and unstructured for most HOA standards
  • Unknown leaf retention could mean untidy dormant appearance
  • May be mistaken for a weed by HOA boards unfamiliar with native plants

Wildlife value

This native legume provides nectar for native bees and beetles during its extended summer blooming period. As a member of the pea family, it also helps fix nitrogen in the soil.

Common questions

How much sun does Narrow-Leaved Milk-Vetch need?
Narrow-Leaved Milk-Vetch grows best in full sun conditions.
When does Narrow-Leaved Milk-Vetch bloom?
Narrow-Leaved Milk-Vetch blooms in May, June, and July.
Where is Narrow-Leaved Milk-Vetch native?
Narrow-Leaved Milk-Vetch (Astragalus pectinatus) is native to CO, KS, MT, ND and 3 more states, per vouchered herbarium specimen records and regional native plant society lists.
Is Narrow-Leaved Milk-Vetch toxic to dogs?
Narrow-Leaved Milk-Vetch is not on the ASPCA Animal Poison Control Center toxic plant list for dogs (aspca.org).
Is Narrow-Leaved Milk-Vetch toxic to cats?
Narrow-Leaved Milk-Vetch is not on the ASPCA Animal Poison Control Center toxic plant list for cats (aspca.org).
What pollinators does Narrow-Leaved Milk-Vetch attract?
Narrow-Leaved Milk-Vetch draws bees and beetles.
Is Narrow-Leaved Milk-Vetch HOA-friendly?
Narrow-Leaved Milk-Vetch 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 Narrow-Leaved Milk-Vetch? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.