North America Native Plant

Heermann’s Buckwheat

Botanical name: Eriogonum heermannii var. argense

USDA symbol: ERHEA

Life cycle: perennial

Habit: subshrub

Native status: Native to the lower 48 states  

Synonyms: Eriogonum heermannii Durand & Hilg. ssp. argense (M.E. Jones) Munz (ERHEA3)  âš˜  Eriogonum howellii S. Stokes (ERHO15)  âš˜  Eriogonum sulcatum S. Watson var. argense M.E. Jones (ERSUA)   

Heermann’s Buckwheat: A Desert Gem Worth Growing Responsibly If you’re looking to add a touch of desert elegance to your garden while supporting native ecosystems, Heermann’s buckwheat (Eriogonum heermannii var. argense) might just be the perfect plant for you. This charming native shrub brings year-round interest to drought-tolerant landscapes, though ...

Rare plant alert!

Region: Conservation status by state

Status: S5T3: Status is uncertain but is somewhere between the following rankings: Subspecies or variety is 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. ⚘ Secure: At very low or no risk of extinction in the jurisdiction due to a very extensive range, abundant populations or occurrences, with little to no concern from declines or threats. ⚘

Heermann’s Buckwheat: A Desert Gem Worth Growing Responsibly

If you’re looking to add a touch of desert elegance to your garden while supporting native ecosystems, Heermann’s buckwheat (Eriogonum heermannii var. argense) might just be the perfect plant for you. This charming native shrub brings year-round interest to drought-tolerant landscapes, though it comes with an important caveat every responsible gardener should know about.

What Makes Heermann’s Buckwheat Special?

Heermann’s buckwheat is a perennial shrub that typically grows as a multi-stemmed woody plant, usually staying under 13-16 feet in height. What really catches the eye are its delicate clusters of small white to pinkish flowers that bloom against attractive gray-green foliage. The plant maintains its compact, rounded form naturally, making it a low-maintenance addition to the right garden setting.

Where Does It Call Home?

This native beauty is naturally found across the Mojave Desert region, growing wild in Arizona, California, and Nevada. It’s perfectly adapted to the harsh desert conditions of these areas, which gives you a clue about what it needs to thrive in your garden.

A Word of Caution: Rarity Matters

Before you rush out to find this plant, here’s something important to know: Heermann’s buckwheat has a Global Conservation Status of S5T3, indicating it faces some conservation concerns. While we absolutely encourage planting native species like this one, it’s crucial that you source your plants responsibly. Always purchase from reputable native plant nurseries that propagate their plants ethically rather than collecting from wild populations.

Perfect Garden Roles

Heermann’s buckwheat shines in several garden settings:

  • Xeriscape and drought-tolerant landscapes
  • Desert-themed gardens
  • Rock gardens where its compact form fits perfectly
  • Native plant gardens focused on supporting local ecosystems
  • As a specimen plant where its unique form can be appreciated

Pollinator Paradise

One of the best reasons to grow Heermann’s buckwheat is its value to pollinators. The clusters of small flowers are magnets for bees, butterflies, and other native pollinators. By planting this native species, you’re providing crucial habitat and food sources that these creatures have evolved alongside for thousands of years.

Growing Conditions: Keep It Simple

The beauty of native plants is that they’re already perfectly adapted to their environment. Heermann’s buckwheat thrives in:

  • Full sun exposure
  • Well-draining sandy or rocky soils
  • Minimal water once established
  • USDA hardiness zones 8-10

The key word here is drainage. Like most desert natives, this plant absolutely cannot tolerate soggy soil conditions.

Planting and Care Tips

Getting your Heermann’s buckwheat established is straightforward if you follow these guidelines:

  • Plant in fall or early spring when temperatures are moderate
  • Ensure excellent drainage by amending heavy soils with sand or gravel
  • Water regularly during the first growing season to establish roots
  • Once established, provide minimal supplemental watering
  • Avoid fertilizers, which can actually harm desert natives
  • Prune lightly if needed to maintain shape, but generally let the plant grow naturally

Is This Plant Right for Your Garden?

Heermann’s buckwheat is perfect for gardeners in appropriate climate zones who want to create water-wise landscapes while supporting native wildlife. It’s especially suited for those interested in desert gardening or anyone looking to reduce their landscape’s water requirements.

However, this plant isn’t suitable for humid climates, areas with heavy clay soils, or gardens where regular irrigation is the norm. It also requires full sun, so shady locations won’t work.

Remember, when you choose to grow this beautiful native, you’re not just adding an attractive plant to your garden – you’re participating in conservation efforts and supporting the complex web of life that depends on native plant communities. Just make sure you’re sourcing your plants responsibly from reputable nurseries that specialize in native species propagation.

Heermann’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 heermannii Durand & Hilg. - Heermann'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