North America Native Plant

Hawkweed Buckwheat

Botanical name: Eriogonum hieraciifolium

USDA symbol: ERHI3

Life cycle: perennial

Habit: subshrub

Native status: Native to the lower 48 states  

Synonyms: Eriogonum pannosum Wooton & Standl. (ERPA23)   

Hawkweed Buckwheat: A Southwestern Native Worth Growing If you’re looking for a low-maintenance native plant that can handle tough conditions while still putting on a beautiful show, let me introduce you to hawkweed buckwheat (Eriogonum hieraciifolium). This charming southwestern native might not have the flashiest name, but it’s got personality ...

Hawkweed Buckwheat: A Southwestern Native Worth Growing

If you’re looking for a low-maintenance native plant that can handle tough conditions while still putting on a beautiful show, let me introduce you to hawkweed buckwheat (Eriogonum hieraciifolium). This charming southwestern native might not have the flashiest name, but it’s got personality in spades and some serious drought-busting credentials.

What is Hawkweed Buckwheat?

Hawkweed buckwheat is a perennial herbaceous plant that belongs to the diverse Eriogonum genus, commonly known as wild buckwheats. Don’t let the herb classification fool you – this isn’t something you’ll be tossing in your pasta sauce. Instead, it’s a hardy forb that forms attractive clumps of silvery-green foliage topped with clusters of delicate flowers.

You might also see this plant listed under its synonym, Eriogonum pannosum, in older gardening references, but Eriogonum hieraciifolium is the accepted name today.

Where Does It Come From?

This native beauty calls the American Southwest home, naturally occurring across Arizona, New Mexico, and Texas. It’s perfectly adapted to the challenging conditions of this region, making it an excellent choice for gardeners who want to work with nature rather than against it.

Why Plant Hawkweed Buckwheat?

There are several compelling reasons to give this native plant a spot in your garden:

  • Drought tolerance: Once established, it laughs in the face of dry conditions
  • Pollinator magnet: Bees, butterflies, and other beneficial insects love the nectar-rich flowers
  • Low maintenance: Perfect for gardeners who prefer plants that take care of themselves
  • Native credentials: Supporting local ecosystems never goes out of style
  • Unique texture: The silvery foliage adds interesting contrast to garden beds

What Does It Look Like?

Hawkweed buckwheat produces dense clusters of small white to pink flowers that seem to float above the foliage like tiny clouds. The flowers are held on slender stems above rosettes of silvery-green leaves. While it won’t tower over your other plants, it creates a lovely textural element that works beautifully as a ground cover or accent plant.

Perfect Garden Companions

This adaptable native fits beautifully into several garden styles:

  • Rock gardens: Its compact size and drought tolerance make it ideal for tucking between stones
  • Xeriscaping: A natural choice for water-wise landscaping
  • Native plant gardens: Pairs well with other southwestern natives
  • Desert landscapes: Adds soft texture to succulent-heavy designs

Growing Hawkweed Buckwheat Successfully

The good news? This plant is remarkably easy to please once you understand its preferences.

Climate and Hardiness

Hawkweed buckwheat thrives in USDA hardiness zones 7-10, making it suitable for most of the southern and southwestern United States. If you’re gardening in its native range, you’re golden. If you’re outside this zone, you might want to consider it as an annual or look for similar native alternatives in your area.

Site Selection and Soil

Think well-draining as your mantra when choosing a spot for hawkweed buckwheat. This plant absolutely must have good drainage – soggy soil is its kryptonite. Sandy or rocky soils that would make other plants sulk will make this one sing. Full sun exposure is preferred, though it can tolerate some light shade.

Planting and Care Tips

Here’s where hawkweed buckwheat really shines – it’s refreshingly low-maintenance:

  • Watering: Water regularly the first growing season to help establish roots, then back off. Once established, natural rainfall should be sufficient in most areas
  • Fertilizing: Skip the fertilizer – this plant prefers lean soil and too much nutrition can make it leggy
  • Pruning: Deadhead spent flowers if you want to prevent self-seeding, or leave them for wildlife to enjoy
  • Mulching: A light mulch of gravel or decomposed granite works better than organic mulches, which can retain too much moisture

Wildlife and Pollinator Benefits

One of the best reasons to plant hawkweed buckwheat is its value to local wildlife. The flowers provide nectar for bees, butterflies, and other pollinators throughout the blooming season. Many Eriogonum species also support specialist bees, making them particularly valuable for native pollinator conservation.

Potential Challenges

While generally problem-free, there are a few things to watch for:

  • Overwatering: The biggest killer of hawkweed buckwheat is too much water, especially in heavy soils
  • Rich soil: Paradoxically, too-fertile soil can cause weak, floppy growth
  • Humidity: In very humid climates, this desert native may struggle

The Bottom Line

Hawkweed buckwheat might not be the showiest plant in the garden center, but it’s the kind of reliable, hardworking native that forms the backbone of a successful drought-tolerant garden. If you’re gardening in the Southwest or have similar growing conditions, this unassuming perennial could become one of your favorite low-maintenance performers.

Plus, there’s something deeply satisfying about growing plants that belong in your local ecosystem. Your local pollinators will thank you, your water bill will thank you, and you’ll have more time to enjoy your garden instead of constantly tending it. Sometimes the best plants are the ones that just quietly do their job while looking good doing it.

Hawkweed 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 hieraciifolium Benth. - hawkweed buckwheat

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