North America Native Plant

Crosby’s Buckwheat

Botanical name: Eriogonum crosbyae

USDA symbol: ERCR10

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Crosby’s Buckwheat: A Rare Native Gem for Western Gardens If you’re looking to add something truly special to your native plant collection, Crosby’s buckwheat (Eriogonum crosbyae) might just be the hidden treasure you’ve been seeking. This charming perennial forb brings a touch of understated elegance to western gardens while supporting ...

Rare plant alert!

Region: Conservation status by state

Status: S3Q: Status is uncertain but is somewhere between the following rankings: Uncertain taxonomy: ⚘ 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 ⚘

Crosby’s Buckwheat: A Rare Native Gem for Western Gardens

If you’re looking to add something truly special to your native plant collection, Crosby’s buckwheat (Eriogonum crosbyae) might just be the hidden treasure you’ve been seeking. This charming perennial forb brings a touch of understated elegance to western gardens while supporting local ecosystems in ways that non-native plants simply can’t match.

What Makes Crosby’s Buckwheat Special?

Crosby’s buckwheat is a delightful member of the buckwheat family that produces clusters of small, cream-colored to white flowers that seem to float above its foliage like tiny clouds. As a perennial forb, it lacks woody stems but returns year after year, making it a reliable addition to your garden palette. The plant maintains a low-growing habit that makes it perfect for tucking into rock gardens or using as a natural ground cover.

Where Does It Call Home?

This native beauty has a rather exclusive address – you’ll find it naturally growing only in Nevada and Oregon. Its limited range makes it a true regional specialty, perfectly adapted to the unique conditions of the Great Basin and surrounding areas.

A Word About Rarity

Here’s something important to know: Crosby’s buckwheat has a conservation status that suggests it may be uncommon in the wild. If you’re interested in growing this special plant, please make sure to source it responsibly from reputable native plant nurseries that propagate their own stock rather than collecting from wild populations. By doing so, you’ll be helping preserve this unique species for future generations.

Why Your Garden (and Local Wildlife) Will Love It

Beyond its subtle beauty, Crosby’s buckwheat is a pollinator magnet. Native bees, butterflies, and other beneficial insects are drawn to its nectar-rich flowers, making your garden a buzzing hub of activity during blooming season. This makes it an excellent choice for anyone looking to support local wildlife while creating a beautiful landscape.

Perfect Garden Situations

This adaptable little plant shines in several garden settings:

  • Rock gardens where its low profile complements stones and other alpine plants
  • Xeriscaping designs that celebrate water-wise gardening
  • Native plant gardens focused on regional flora
  • Wildlife gardens designed to support pollinators and other beneficial creatures

Growing Conditions That Make It Happy

Like many western natives, Crosby’s buckwheat appreciates the tough love approach to gardening. It thrives in full sun and well-draining soils – think sandy or rocky conditions rather than rich, moist garden loam. Once established, it’s remarkably drought tolerant, making it perfect for water-wise landscapes.

This hardy perennial can handle USDA zones 5 through 8, making it suitable for a wide range of western growing conditions.

Planting and Care Tips

The secret to success with Crosby’s buckwheat is remembering that less is often more:

  • Plant in spring after the last frost in well-draining soil
  • Choose a sunny location with good air circulation
  • Water regularly the first growing season to help establish roots
  • Once established, water sparingly – overwatering is often more harmful than drought
  • Avoid heavy fertilization, which can make the plant leggy and reduce flowering
  • Deadhead spent flowers to encourage additional blooms

The Bottom Line

Crosby’s buckwheat offers western gardeners a chance to grow something truly special – a beautiful native plant that supports local ecosystems while requiring minimal care once established. Its rarity makes it even more precious, so if you decide to add this gem to your garden, remember to source it responsibly and perhaps share seeds or divisions with fellow native plant enthusiasts. After all, the best way to preserve special plants like this is to grow them with care and share them with love.

Crosby’s Buckwheat

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Caryophyllidae

Order

Polygonales

Family

Polygonaceae Juss. - Buckwheat family

Genus

Eriogonum Michx. - buckwheat

Species

Eriogonum crosbyae Reveal - Crosby's buckwheat

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