North America Native Plant

Spearleaf Buckwheat

Botanical name: Eriogonum lonchophyllum var. lonchophyllum

USDA symbol: ERLOL3

Life cycle: perennial

Habit: subshrub

Native status: Native to the lower 48 states  

Synonyms: Eriogonum corymbosum Benth. var. humivagans (Reveal) S.L. Welsh (ERCOH3)  âš˜  Eriogonum humivagans Reveal (ERHU2)  âš˜  Eriogonum lonchophyllum Torr. & A. Gray var. saurinum (Reveal) S.L. Welsh (ERLOS)  âš˜  Eriogonum saurinum Reveal (ERSA10)  âš˜  Eriogonum sarothriforme Gandog. (ERSA12)  âš˜  Eriogonum salicinum Greene (ERSA13)  âš˜  Eriogonum scoparium Small (ERSC8)  âš˜  Eriogonum tristichum Small (ERTR10)   

Spearleaf Buckwheat: A Hardy Native for Water-Wise Gardens If you’re looking for a tough-as-nails native plant that laughs in the face of drought while still putting on a pretty show, let me introduce you to spearleaf buckwheat (Eriogonum lonchophyllum var. lonchophyllum). This scrappy little perennial might not have the flashiest ...

Rare plant alert!

Region: Conservation status by state

Status: S4T3: 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. ⚘ Apparently Secure: Uncommon but not rare, and usually widespread. Possibly cause for longterm concern. Typically more than 100 occurrences in the state or more than 10,000 individuals ⚘

Spearleaf Buckwheat: A Hardy Native for Water-Wise Gardens

If you’re looking for a tough-as-nails native plant that laughs in the face of drought while still putting on a pretty show, let me introduce you to spearleaf buckwheat (Eriogonum lonchophyllum var. lonchophyllum). This scrappy little perennial might not have the flashiest name, but it’s got personality in spades and the kind of resilience that makes gardeners do happy dances.

What Makes Spearleaf Buckwheat Special?

Spearleaf buckwheat is a true American native, calling the southwestern United States home. You’ll find this hardy perennial growing wild across Colorado, New Mexico, and Utah, where it has learned to thrive in some pretty challenging conditions. As a forb herb, it’s got that low-growing, non-woody character that makes it perfect for filling in spaces without overwhelming its neighbors.

The plant gets its common name from its distinctive spear-shaped leaves, which give it a neat, architectural look even when it’s not in bloom. But don’t let its modest appearance fool you – this little powerhouse has been quietly doing its thing in harsh Western landscapes for ages.

Why Your Garden Will Love This Plant

Here’s where spearleaf buckwheat really shines: it’s practically maintenance-free once established. This perennial forms attractive mounding clumps that work beautifully as ground cover or accent plants in rock gardens. When blooming season arrives, it produces clusters of small white to pink flowers that create a delicate, cloud-like effect.

But the real magic happens when pollinators discover your spearleaf buckwheat. Bees, butterflies, and other native insects absolutely adore the nectar-rich flowers, making this plant a valuable addition to any pollinator-friendly garden. It’s like hosting a tiny outdoor café for your local beneficial insects.

Perfect Garden Situations

Spearleaf buckwheat is tailor-made for several garden styles:

  • Xeriscape and drought-tolerant gardens
  • Rock gardens and alpine plantings
  • Native plant gardens
  • Low-maintenance landscapes
  • Slopes and areas with poor soil

Growing Spearleaf Buckwheat Successfully

The beauty of this plant lies in its simplicity. Spearleaf buckwheat thrives in USDA hardiness zones 4-8, making it suitable for a wide range of climates. Here’s how to keep it happy:

Location and Soil: Give it a sunny spot with well-draining soil. Sandy or rocky soil? Even better! This plant actually prefers lean conditions and can struggle in rich, amended soils. Think desert chic rather than pampered garden bed.

Watering: Once established, spearleaf buckwheat is remarkably drought-tolerant. Water it regularly the first season to help roots establish, then back off. Too much water can actually harm this tough cookie.

Planting and Care: Spring is the ideal time to plant. Space plants according to their mature size to allow for good air circulation. After the first year, your main job is to sit back and enjoy the show. You can deadhead spent flowers if you want to encourage more blooms, but it’s not necessary for the plant’s health.

A Few Things to Keep in Mind

While spearleaf buckwheat has a conservation status of S4T3 (which indicates it’s not considered critically rare but isn’t super common either), always source your plants from reputable nurseries that grow them responsibly rather than collecting from the wild.

This plant isn’t considered invasive or problematic, making it a safe choice for conscientious gardeners who want to support native ecosystems without creating headaches down the road.

The Bottom Line

Spearleaf buckwheat might not be the showiest plant in the garden center, but it’s exactly the kind of reliable, beneficial native that forms the backbone of sustainable landscapes. It asks for little, gives back plenty (especially to pollinators), and looks good doing it. For gardeners in its native range who want to create beautiful, low-maintenance, and ecologically valuable gardens, this unassuming perennial deserves serious consideration.

Sometimes the best garden additions are the ones that prove you don’t need to work harder – you just need to work smarter. And spearleaf buckwheat? It’s pretty darn smart.

Spearleaf 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 lonchophyllum Torr. & A. Gray - spearleaf buckwheat

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