North America Native Plant

Ferron’s Milkvetch

Botanical name: Astragalus musiniensis

USDA symbol: ASMU3

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Ferron’s Milkvetch: A Rare Native Beauty Worth Protecting Meet Ferron’s milkvetch (Astragalus musiniensis), a charming perennial that’s as special as its name suggests. This little-known native plant might not be on every gardener’s wish list yet, but it deserves a spot in the conversation about conservation gardening and supporting our ...

Rare plant alert!

Region: Conservation status by state

Status: S3: Status is uncertain but is somewhere between the following rankings: Vulnerable: Either very rare and local throughout its range, found only in a restricted range (even if abundant at some locations), or factors are making it vulnerable to extinction. Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals ⚘

Ferron’s Milkvetch: A Rare Native Beauty Worth Protecting

Meet Ferron’s milkvetch (Astragalus musiniensis), a charming perennial that’s as special as its name suggests. This little-known native plant might not be on every gardener’s wish list yet, but it deserves a spot in the conversation about conservation gardening and supporting our local ecosystems.

Where You’ll Find This Hidden Gem

Ferron’s milkvetch calls the American West home, specifically making its native range in Colorado and Utah. This perennial plant is perfectly adapted to the unique growing conditions of these regions, having evolved alongside the local wildlife and climate patterns over thousands of years.

Why Ferron’s Milkvetch Needs Our Attention

Here’s where things get serious, fellow plant lovers. Ferron’s milkvetch has a Global Conservation Status of S3, which translates to Vulnerable. This means it’s either very rare throughout its range or found only in restricted areas. With typically just 21 to 100 occurrences or between 3,000 and 10,000 individuals remaining, this plant is walking a tightrope toward a more precarious future.

This vulnerable status makes Ferron’s milkvetch both incredibly special and requiring our careful consideration as gardeners.

Should You Plant Ferron’s Milkvetch?

The short answer? Only if you can source it responsibly. Given its vulnerable conservation status, it’s crucial that any plant material comes from ethical suppliers who propagate rather than wild-harvest these precious plants. Never collect seeds or plants from wild populations – doing so could harm already fragile communities of this rare species.

If you can find responsibly sourced Ferron’s milkvetch, you’ll be:

  • Supporting conservation efforts for a vulnerable native species
  • Adding authentic regional character to your landscape
  • Providing habitat for local pollinators and wildlife that co-evolved with this plant
  • Participating in the preservation of biodiversity

What Makes This Plant Special

As a member of the milkvetch family, Ferron’s milkvetch likely shares many characteristics with its relatives – though specific details about its appearance and growing habits aren’t widely documented. Like other Astragalus species, it’s probably a modest but attractive plant that fits beautifully into naturalistic garden designs and native plant communities.

Creating the Right Conditions

Since Ferron’s milkvetch is native to Colorado and Utah, it’s likely adapted to:

  • Well-draining soils typical of western landscapes
  • Lower water requirements once established
  • Temperature fluctuations common in mountain and high desert regions
  • Alkaline or neutral soil conditions

Before planting, research the specific growing conditions in your area and consult with local native plant societies or extension services for the most accurate guidance.

The Bigger Picture

Choosing to grow rare native plants like Ferron’s milkvetch is about more than just adding another species to your garden – it’s about becoming a steward of biodiversity. Every responsibly grown native plant helps preserve genetic diversity and supports the complex web of relationships that make ecosystems thrive.

If you can’t source Ferron’s milkvetch responsibly, consider supporting its conservation in other ways: donate to organizations working on native plant conservation, volunteer with local botanical surveys, or choose other native Colorado and Utah plants that are more readily available.

A Plant Worth Protecting

Ferron’s milkvetch may be small in stature and limited in range, but its value to our natural heritage is immeasurable. Whether you choose to grow it or simply appreciate it from afar, this vulnerable perennial reminds us that every native plant has a story worth preserving – and sometimes, that preservation starts right in our own backyards.

Ferron’s Milkvetch

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Rosidae

Order

Fabales

Family

Fabaceae Lindl. - Pea family

Genus

Astragalus L. - milkvetch

Species

Astragalus musiniensis M.E. Jones - Ferron's milkvetch

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA