North America Native Plant

Parsnipflower Buckwheat

Botanical name: Eriogonum heracleoides var. heracleoides

USDA symbol: ERHEH3

Life cycle: perennial

Habit: subshrub

Native status: Native to the lower 48 states  

Synonyms: Eriogonum heracleoides Nutt. var. minus Benth. (ERHEM)   

Parsnipflower Buckwheat: A Hardy Native Wildflower for Water-Wise Gardens If you’re looking for a tough-as-nails native plant that laughs in the face of drought while serving up a buffet for pollinators, let me introduce you to parsnipflower buckwheat. This unassuming perennial herb might not win any beauty contests at first ...

Parsnipflower Buckwheat: A Hardy Native Wildflower for Water-Wise Gardens

If you’re looking for a tough-as-nails native plant that laughs in the face of drought while serving up a buffet for pollinators, let me introduce you to parsnipflower buckwheat. This unassuming perennial herb might not win any beauty contests at first glance, but it’s the kind of plant that grows on you – literally and figuratively – once you understand what it brings to the garden.

Meet the Parsnipflower Buckwheat

Scientifically known as Eriogonum heracleoides var. heracleoides, parsnipflower buckwheat is a native perennial herb that’s been quietly thriving across the western United States long before we started fussing over our flower beds. As a member of the buckwheat family, it’s built for survival in some pretty challenging conditions.

This hardy native calls home a impressive swath of the American West, growing naturally in California, Colorado, Idaho, Montana, Nevada, Oregon, Utah, Washington, and Wyoming. It’s particularly fond of sagebrush steppes and dry mountain slopes, which tells you everything you need to know about its preferences.

What Does It Look Like?

Don’t expect towering stems or showy blooms with this one. Parsnipflower buckwheat is a low-growing forb that stays close to the ground, forming attractive mats or clumps. During summer and into fall, it produces clusters of small, creamy white to pale yellow flowers arranged in umbrella-like formations that might remind you of – you guessed it – parsnip flowers, hence the common name.

The flowers may be small, but they make up for it in sheer numbers and their irresistible appeal to pollinators. Bees, butterflies, and other beneficial insects can’t seem to get enough of these modest blooms.

Why Grow Parsnipflower Buckwheat?

Here’s where this plant really shines:

  • Drought Champion: Once established, it needs minimal water and thrives in conditions that would stress out most garden plants
  • Pollinator Magnet: Those small flowers are like tiny landing pads for native bees and butterflies
  • Low Maintenance: This is a plant it and forget it kind of perennial that doesn’t need much fussing
  • Native Credentials: Supporting local ecosystems while reducing water usage? That’s a win-win
  • Versatile: Perfect for rock gardens, xeriscaping, naturalized areas, or as groundcover in challenging spots

Where to Use It in Your Landscape

Parsnipflower buckwheat isn’t trying to be the star of your perennial border, and that’s perfectly fine. Think of it as a reliable supporting actor that makes everything else look better. It’s ideal for:

  • Rock gardens where you need something tough and attractive
  • Drought-tolerant landscapes and xeriscaping projects
  • Native plant gardens focused on regional species
  • Naturalized areas where you want low-maintenance coverage
  • Slopes or challenging spots where other plants struggle

Growing Conditions and Care

The beauty of parsnipflower buckwheat lies in its simplicity. This plant thrives in USDA hardiness zones 4-8, making it suitable for a wide range of climates across its native range.

Sunlight: Full sun is non-negotiable. This plant needs at least 6-8 hours of direct sunlight daily.

Soil: Well-draining soil is crucial. It’s not picky about soil type – sandy, rocky, or clay – as long as water doesn’t sit around the roots. Poor soils are actually preferred over rich, amended garden soils.

Water: Here’s where many gardeners go wrong. After establishment (usually one growing season), this plant needs very little supplemental water. Overwatering is more likely to kill it than drought.

Planting and Care Tips

Spring is the best time to plant parsnipflower buckwheat. Here’s how to set it up for success:

  • Choose a sunny spot with well-draining soil
  • Dig a hole just as deep as the root ball and twice as wide
  • Don’t amend the soil unless drainage is poor
  • Water regularly the first year to establish roots, then back off significantly
  • Avoid fertilizers – this plant actually prefers lean conditions
  • Deadhead spent flowers if you want to prevent self-seeding, or leave them for continued pollinator activity

The Bottom Line

Parsnipflower buckwheat might not be the flashiest plant in the garden center, but it’s exactly the kind of hardworking native that makes ecological sense. If you’re building a water-wise landscape, supporting pollinators, or just want a reliable perennial that won’t quit on you during tough times, this buckwheat deserves a spot in your garden. Sometimes the best plants are the ones that quietly do their job while asking for very little in return.

Parsnipflower 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 heracleoides Nutt. - parsnipflower buckwheat

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