North America Native Plant

Naturita Milkvetch

Botanical name: Astragalus naturitensis

USDA symbol: ASNA

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Naturita Milkvetch: A Rare Gem for the Dedicated Native Plant Gardener Meet Naturita milkvetch (Astragalus naturitensis), a charming but challenging native perennial that’s definitely not your average garden plant. This little-known member of the legume family might just be the perfect addition to your native plant collection – if you’re ...

Rare plant alert!

Region: Conservation status by state

Status: S2S3: Status is uncertain but is somewhere between the following rankings: Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 6 to 20 occurrences or few remaining individuals (1,000 to 3,000) ⚘ 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 ⚘

Naturita Milkvetch: A Rare Gem for the Dedicated Native Plant Gardener

Meet Naturita milkvetch (Astragalus naturitensis), a charming but challenging native perennial that’s definitely not your average garden plant. This little-known member of the legume family might just be the perfect addition to your native plant collection – if you’re up for the challenge and can source it responsibly.

Where Does Naturita Milkvetch Call Home?

This specialized native is a true regional treasure, naturally occurring only in Colorado, New Mexico, and Utah. It’s what botanists call an endemic species, meaning it evolved in this specific corner of the Colorado Plateau and doesn’t grow wild anywhere else in the world. Talk about local pride!

A Word of Caution: Rarity Matters

Before we dive into growing tips, here’s something important to know: Naturita milkvetch has a Global Conservation Status of S2S3, which indicates it’s uncommon to somewhat common but still of conservation concern. This means if you decide to grow this plant, please make sure you’re getting it from a reputable nursery that propagates it responsibly rather than collecting from wild populations.

What Makes This Plant Special?

Naturita milkvetch is a perennial that brings subtle beauty to the right garden setting. Here’s what you can expect:

  • Delicate white to pale pink flowers that bloom in spring
  • Compound leaves typical of the legume family
  • Low-growing habit that works well as a ground cover
  • Drought tolerance once established
  • Support for native pollinators, especially smaller native bees

Is Naturita Milkvetch Right for Your Garden?

This isn’t a plant for everyone, and that’s perfectly okay! Naturita milkvetch thrives in specific conditions and works best in:

  • Rock gardens where drainage is excellent
  • Xerophytic (dry-climate) garden designs
  • Native plant collections and restoration projects
  • Gardens in USDA hardiness zones 4-7

If you’re looking for a low-maintenance plant that tolerates neglect, this might not be your best choice. However, if you enjoy the challenge of growing specialized natives and want to support local biodiversity, Naturita milkvetch could be perfect.

Growing Conditions: The Key to Success

Like many plants native to the Colorado Plateau, Naturita milkvetch has some non-negotiable requirements:

  • Drainage: This is absolutely critical – soggy soils will quickly kill this plant
  • Sun exposure: Full sun is essential for healthy growth
  • Soil: Well-draining, often rocky or sandy soils work best
  • Water: Minimal once established – think desert tough

Planting and Care Tips

Successfully growing Naturita milkvetch requires patience and attention to detail:

  • Plant in spring after the last frost date
  • Amend heavy clay soils with coarse sand or gravel to improve drainage
  • Water sparingly during establishment, then reduce to minimal supplemental watering
  • Avoid fertilizing – these plants are adapted to lean soils
  • Be patient – native legumes can be slow to establish but are worth the wait

Supporting Wildlife in Your Garden

One of the best reasons to grow Naturita milkvetch is its value to local pollinators. Native bees and other small pollinators rely on plants like this for food and habitat. By including rare natives in your garden, you’re creating stepping stones for wildlife and supporting biodiversity conservation.

The Bottom Line

Naturita milkvetch isn’t for beginner gardeners or those looking for instant gratification. But if you’re passionate about native plants, enjoy a gardening challenge, and want to contribute to conservation efforts, this rare beauty might be exactly what your garden needs. Just remember to source it responsibly and be prepared to meet its specific growing requirements.

Sometimes the most rewarding plants are the ones that make us work a little harder – and Naturita milkvetch definitely falls into that category!

Naturita 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 naturitensis Payson - Naturita milkvetch

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