North America Native Plant

Woollypod Milkvetch

Botanical name: Astragalus purshii var. lectulus

USDA symbol: ASPUL2

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Astragalus jonesii Abrams (ASJO4)  âš˜  Astragalus lectulus S. Watson (ASLE15)   

Woollypod Milkvetch: A Drought-Tolerant Native Gem for Western Gardens Meet the woollypod milkvetch (Astragalus purshii var. lectulus), a charming native perennial that’s perfectly suited for water-wise gardening in the American West. This unassuming little plant packs a big punch when it comes to supporting local ecosystems while adding delicate beauty ...

Woollypod Milkvetch: A Drought-Tolerant Native Gem for Western Gardens

Meet the woollypod milkvetch (Astragalus purshii var. lectulus), a charming native perennial that’s perfectly suited for water-wise gardening in the American West. This unassuming little plant packs a big punch when it comes to supporting local ecosystems while adding delicate beauty to your landscape.

What Makes Woollypod Milkvetch Special?

This native beauty is a true child of the American West, naturally occurring across California, Nevada, and Oregon. As a perennial member of the pea family, it brings that classic legume charm with clusters of small, purple to pink flowers that bloom in spring and early summer. The plant gets its woollypod name from the fuzzy, silvery-haired seed pods that follow the flowers.

You might also encounter this plant listed under its synonyms Astragalus jonesii or Astragalus lectulus in older botanical references, so don’t let the name variations confuse you!

Why Your Garden Will Love This Plant

Woollypod milkvetch is the kind of plant that makes both gardeners and nature happy. Here’s why it deserves a spot in your landscape:

  • Drought champion: Once established, this tough little plant thrives with minimal water
  • Pollinator magnet: Native bees and butterflies flock to its nectar-rich blooms
  • Low maintenance: Perfect for busy gardeners who want beauty without the fuss
  • Native credentials: Supports local wildlife and fits naturally into regional ecosystems
  • Unique texture: The silvery, hairy foliage adds interesting contrast to garden compositions

Where Does It Fit in Your Landscape?

This versatile native works wonderfully in several garden settings. Rock gardens are perhaps its most natural home, where it can nestle between stones and show off its drought-tolerant nature. It’s also excellent for xerophytic gardens, native plant gardens, and naturalized areas where you want to recreate the beauty of western wildlands.

Think of woollypod milkvetch as a supporting actor rather than the main star – it provides texture, seasonal color, and ecological function while complementing showier native plants.

Growing Conditions That Make It Happy

Success with woollypod milkvetch comes from mimicking its natural habitat. This plant thrives in USDA hardiness zones 4-8, making it suitable for a wide range of western climates.

Soil requirements: Well-draining, sandy, or rocky soils are essential. This plant absolutely cannot tolerate soggy conditions, so if you have clay soil, consider raised beds or extensive soil amendments.

Sun exposure: Full sun is preferred, though it can handle some light shade in hotter climates.

Water needs: Drought tolerant once established, but benefits from occasional deep watering during extremely dry periods.

Planting and Care Tips

Getting woollypod milkvetch established requires a bit of patience, but it’s worth the effort:

  • Timing: Plant in fall or early spring when temperatures are moderate
  • Soil prep: Ensure excellent drainage – this is non-negotiable for success
  • Watering: Provide regular water the first year, then gradually reduce as the plant establishes
  • Fertilizing: Generally unnecessary and can actually harm the plant
  • Pruning: Minimal pruning needed; remove spent flowers if you don’t want self-seeding

Supporting Wildlife in Your Backyard

One of the best reasons to grow woollypod milkvetch is its value to native pollinators. The flowers provide nectar for various bee species, while the foliage may serve as food for certain butterfly larvae. By choosing natives like this one, you’re creating habitat corridors that help support struggling pollinator populations.

Is This Plant Right for You?

Woollypod milkvetch is ideal for gardeners who want to embrace water-wise gardening while supporting native ecosystems. It’s particularly well-suited for those in California, Nevada, and Oregon who are looking to create authentic regional landscapes.

However, if you’re looking for a high-impact, showy plant or need something for consistently moist conditions, this might not be your best choice. Its beauty is subtle and its growth requirements are specific to well-draining soils.

For western gardeners committed to native plants and sustainable landscaping, woollypod milkvetch offers a perfect combination of ecological value, drought tolerance, and understated charm. It’s a small plant with a big role in creating resilient, wildlife-friendly gardens.

Woollypod 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 purshii Douglas ex Hook. - woollypod milkvetch

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