North America Native Plant

Westwater Buckwheat

Botanical name: Eriogonum scabrellum

USDA symbol: ERSC4

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Westwater Buckwheat: A Rare Gem for Your Native Garden If you’re looking to add a unique southwestern native to your garden, Westwater buckwheat (Eriogonum scabrellum) might just be the hidden treasure you’ve been seeking. This charming little annual brings delicate beauty to xerophytic landscapes while supporting local pollinators – though ...

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 ⚘

Westwater Buckwheat: A Rare Gem for Your Native Garden

If you’re looking to add a unique southwestern native to your garden, Westwater buckwheat (Eriogonum scabrellum) might just be the hidden treasure you’ve been seeking. This charming little annual brings delicate beauty to xerophytic landscapes while supporting local pollinators – though its rarity makes it a plant that requires some special consideration.

What Makes Westwater Buckwheat Special?

Westwater buckwheat is a native forb that belongs to the diverse buckwheat family. As an annual plant, it completes its entire life cycle in just one growing season, making it quite different from its perennial buckwheat cousins. This herbaceous beauty lacks woody tissue and stays relatively close to the ground, creating clusters of tiny white to pinkish flowers that seem to float above its small, often fuzzy leaves.

Where Does It Call Home?

This southwestern native has a fairly limited range, naturally occurring in Colorado, New Mexico, and Utah. It’s perfectly adapted to the challenging conditions of the Colorado Plateau region, where it has evolved to thrive in the high desert environment.

A Word of Caution: Rarity Matters

Before you rush out to plant Westwater buckwheat, there’s something important you should know. This species has a Global Conservation Status of S3, meaning it’s considered vulnerable. With only 21 to 100 known occurrences and an estimated 3,000 to 10,000 individuals remaining in the wild, this little plant needs our protection.

If you’re interested in growing Westwater buckwheat, please ensure you source seeds or plants only from reputable native plant suppliers who practice responsible collection methods. Never harvest from wild populations.

Why Consider Growing It?

Despite its rarity – or perhaps because of it – Westwater buckwheat offers several compelling reasons to include it in your garden:

  • Supports native pollinators including small native bees and butterflies
  • Perfectly adapted to low-water conditions
  • Adds delicate texture to rock gardens and xeric landscapes
  • Helps preserve a vulnerable native species through cultivation
  • Thrives in poor soils where other plants struggle

Growing Conditions and Care

Westwater buckwheat is surprisingly easy to grow once you understand its preferences. This tough little plant actually prefers the challenging conditions that would stress many garden favorites:

  • Sunlight: Full sun is essential
  • Soil: Well-draining, sandy, or rocky soils work best
  • Water: Minimal water requirements once established
  • Hardiness: Suitable for USDA zones 4-8

Planting and Care Tips

Growing Westwater buckwheat successfully is all about mimicking its natural habitat:

  • Direct sow seeds in fall for best germination
  • Choose a location with excellent drainage – soggy soils are this plant’s enemy
  • Avoid fertilizing; it actually prefers nutrient-poor conditions
  • Water sparingly, especially once plants are established
  • Allow plants to self-seed for natural population maintenance

Perfect Garden Companions

Westwater buckwheat shines in xerophytic and native plant gardens. It pairs beautifully with other drought-tolerant southwestern natives and works wonderfully in rock gardens where its low-growing habit can cascade over stones. Consider combining it with other native grasses and wildflowers that share similar growing requirements.

The Bottom Line

Westwater buckwheat offers gardeners a chance to grow something truly special while contributing to conservation efforts. Its delicate flowers, pollinator benefits, and minimal care requirements make it an excellent choice for water-wise gardens. Just remember to source responsibly and give this vulnerable beauty the well-draining, sunny conditions it craves. Your garden – and local pollinators – will thank you for it!

Westwater 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 scabrellum Reveal - Westwater buckwheat

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