North America Native Plant

Nevada Pea

Botanical name: Lathyrus lanszwertii var. leucanthus

USDA symbol: LALAL3

Life cycle: perennial

Habit: vine

Native status: Native to the lower 48 states  

Synonyms: Lathyrus arizonicus Britton (LAAR6)  âš˜  Lathyrus lanszwertii Kellogg var. arizonicus (Britton) S.L. Welsh (LALAA3)  âš˜  Lathyrus leucanthus Rydb. (LALE2)   

Nevada Pea: A Charming Native Wildflower for Western Gardens If you’re looking to add a delicate touch of native charm to your western garden, meet the Nevada pea (Lathyrus lanszwertii var. leucanthus). This understated perennial might not be the showiest plant in your garden, but it brings a quiet elegance ...

Nevada Pea: A Charming Native Wildflower for Western Gardens

If you’re looking to add a delicate touch of native charm to your western garden, meet the Nevada pea (Lathyrus lanszwertii var. leucanthus). This understated perennial might not be the showiest plant in your garden, but it brings a quiet elegance that perfectly complements bolder native companions.

What is Nevada Pea?

Nevada pea is a native perennial forb that belongs to the legume family. Don’t let the pea name fool you into thinking you’ll be harvesting dinner from this plant – it’s all about the ornamental value! This herbaceous perennial produces lovely small white to cream-colored flowers that look exactly like tiny sweet pea blossoms.

You might also see this plant listed under its scientific synonyms, including Lathyrus arizonicus or Lathyrus leucanthus, but they’re all referring to the same charming species.

Where Does Nevada Pea Call Home?

This native beauty has made itself at home across the southwestern United States, naturally occurring in Arizona, Colorado, New Mexico, Texas, Utah, and Wyoming. It’s perfectly adapted to the challenging growing conditions of the American West.

Why Plant Nevada Pea in Your Garden?

There are several compelling reasons to consider adding Nevada pea to your native plant palette:

  • True native credentials: This plant evolved in western soils and climates, making it naturally suited to your local ecosystem
  • Low-maintenance appeal: Once established, Nevada pea is quite drought-tolerant and doesn’t demand constant attention
  • Pollinator magnet: The pea-like flowers attract bees and other beneficial pollinators to your garden
  • Soil improvement: As a legume, it actually helps fix nitrogen in the soil, benefiting neighboring plants
  • Delicate beauty: The compound leaves and tendrils add fine texture, while the white flowers provide subtle color

Perfect Garden Companions

Nevada pea works beautifully in several garden styles:

  • Native plant gardens: Pairs wonderfully with other southwestern natives
  • Wildflower meadows: Adds gentle color without overwhelming bolder blooms
  • Xeriscape designs: Fits perfectly into water-wise landscaping
  • Restoration projects: Excellent choice for rehabilitating disturbed native areas

Growing Nevada Pea Successfully

The good news is that Nevada pea isn’t particularly fussy – after all, it’s been thriving in challenging western conditions for millennia!

Climate Requirements

Nevada pea is hardy in USDA zones 4-8, making it suitable for most areas within its native range and similar climates.

Soil and Sun Preferences

This adaptable native prefers:

  • Well-draining soils (it really doesn’t like wet feet)
  • Full sun to partial shade
  • Average to poor soils – it’s not a heavy feeder

Planting Tips

For best results with Nevada pea:

  • Direct seed in fall for natural winter stratification
  • Lightly scarify seeds to improve germination rates
  • Plant seeds about ¼ inch deep
  • Space plants 12-18 inches apart if growing from transplants

Care and Maintenance

Once established, Nevada pea is refreshingly low-maintenance:

  • Water regularly the first year, then reduce to occasional deep watering
  • No fertilizer needed – remember, it makes its own nitrogen!
  • Allow plants to self-seed for natural spreading
  • Cut back in late fall or early spring if desired

Is Nevada Pea Right for Your Garden?

Nevada pea might be perfect for your garden if you:

  • Live within or near its native range
  • Appreciate subtle, naturalistic beauty over flashy showstoppers
  • Want to support native pollinators
  • Prefer low-maintenance, drought-tolerant plants
  • Are creating a native plant or wildflower garden

However, you might want to consider other options if you’re looking for a plant with bold, showy flowers or if you live well outside its natural range where other natives might be more appropriate.

The Bottom Line

Nevada pea may not be the star of the show, but it’s exactly the kind of reliable, native supporting player that makes a garden ecosystem truly thrive. Its delicate flowers, drought tolerance, and pollinator appeal make it a worthy addition to any western native plant garden. Plus, there’s something deeply satisfying about growing a plant that’s been calling your region home for thousands of years!

Nevada Pea

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

Lathyrus L. - pea

Species

Lathyrus lanszwertii Kellogg - Nevada pea

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