North America Native Plant

Snow Buckwheat

Botanical name: Eriogonum niveum

USDA symbol: ERNI2

Life cycle: perennial

Habit: subshrub

Native status: Native to Canada âš˜ Native to the lower 48 states  

Synonyms: Eriogonum niveum Douglas ex Benth. ssp. decumbens (Benth.) S. Stokes (ERNID)  âš˜  Eriogonum niveum Douglas ex Benth. var. dichotomum (Douglas ex Benth.) M.E. Jones (ERNID2)  âš˜  Eriogonum niveum Douglas ex Benth. var. decumbens (Benth.) Torr. & A. Gray (ERNID3)  âš˜  Eriogonum strictum Benth. var. lachnostegium (ERSTL)   

Snow Buckwheat: A Silver-Leafed Beauty for Water-Wise Gardens If you’re looking for a drought-tolerant native plant that brings year-round interest to your garden, let me introduce you to snow buckwheat (Eriogonum niveum). This Pacific Northwest native might just become your new favorite low-maintenance ground cover – and your local pollinators ...

Snow Buckwheat: A Silver-Leafed Beauty for Water-Wise Gardens

If you’re looking for a drought-tolerant native plant that brings year-round interest to your garden, let me introduce you to snow buckwheat (Eriogonum niveum). This Pacific Northwest native might just become your new favorite low-maintenance ground cover – and your local pollinators will thank you for it!

What Makes Snow Buckwheat Special?

Snow buckwheat is a perennial herb that forms attractive, low-growing mounds of silvery-gray foliage. Don’t let the name fool you – this isn’t related to the grain buckwheat at all. Instead, it’s part of the diverse buckwheat family that includes many beloved native wildflowers.

During late summer, this charming plant produces clusters of tiny white to cream-colored flowers that gradually age to lovely shades of pink and rust. The show doesn’t stop there – the seed heads persist well into fall, adding texture and visual interest to your garden even after the blooming season ends.

Where Snow Buckwheat Calls Home

This hardy native is naturally found across the Pacific Northwest, including British Columbia, Washington, Oregon, and Idaho. In the wild, you’ll typically spot it on dry, open slopes and rocky areas where it has adapted to thrive in challenging conditions.

Garden Design Possibilities

Snow buckwheat is incredibly versatile in the landscape. Here are some great ways to use it:

  • Ground cover for slopes and banks (excellent for erosion control)
  • Rock garden centerpiece
  • Border plant in drought-tolerant gardens
  • Naturalized areas and wildflower meadows
  • Xeriscape and low-water landscapes

At maturity, expect your snow buckwheat to reach about 1 to 1.5 feet tall with a colonizing growth habit that spreads slowly to form attractive patches. Its decumbent shape (meaning it tends to sprawl and trail) makes it perfect for cascading over walls or filling in between rocks.

Growing Conditions That Make It Happy

One of the best things about snow buckwheat is how easy-going it is once you understand its preferences. This plant is naturally adapted to tough conditions, so it actually prefers a bit of neglect!

Sunlight: Full sun is best, though it can tolerate some shade

Soil: Well-draining soil is absolutely essential. It adapts well to coarse and medium-textured soils but struggles in heavy clay

Water: Highly drought tolerant once established. Requires only 6-18 inches of annual precipitation

pH: Prefers slightly alkaline conditions (pH 6.5-8.0)

Climate: Hardy in USDA zones 4-8, tolerating temperatures down to -23°F

Planting and Care Made Simple

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

  • When to plant: Spring is ideal, giving plants time to establish before winter
  • Spacing: Plant 2,700-7,000 per acre for large areas, or space individual plants 2-3 feet apart
  • Soil prep: Ensure excellent drainage – this is non-negotiable! Add gravel or sand to heavy soils
  • Watering: Water regularly the first year, then back off. Mature plants rarely need supplemental water
  • Fertilizing: Skip it! This plant prefers low-fertility conditions
  • Pruning: Cut back old flower stems in late fall or early spring

A Pollinator Paradise

Here’s where snow buckwheat really shines – it’s a pollinator magnet! The late summer blooms provide crucial nectar when many other flowers are fading. You’ll see native bees, butterflies, beneficial wasps, and other small pollinators visiting regularly. This makes it an excellent choice for supporting local ecosystem health.

Propagation Possibilities

Snow buckwheat can be grown from seed, and it’s routinely available from native plant nurseries. Seeds require cold stratification (a period of cold, moist conditions) to germinate properly, so fall sowing often works well. The plant can also be propagated from bare root stock or container plants.

Keep in mind that seed production is typically low, and the plant has a slow spread rate, so patience is key when establishing new colonies.

Is Snow Buckwheat Right for Your Garden?

Snow buckwheat is perfect for gardeners who:

  • Want to reduce water usage
  • Appreciate subtle, natural beauty
  • Support native pollinators
  • Need erosion control on slopes
  • Prefer low-maintenance plants
  • Garden in challenging, dry conditions

However, it might not be the best choice if you prefer lush, tropical-looking plants or have very wet, poorly-drained soil conditions.

The Bottom Line

Snow buckwheat proves that native plants can be both beautiful and practical. With its silvery foliage, delicate flowers, and incredible drought tolerance, it’s a wonderful addition to water-wise gardens throughout the Pacific Northwest and beyond. Plus, you’ll be supporting local wildlife while creating a landscape that truly belongs in your region.

Ready to give this underappreciated native a try? Your garden – and your local pollinators – will be better for it!

How

Snow Buckwheat

Grows

Growing season

Spring, Summer, Fall

Lifespan

Long

Growth form & shape

Colonizing and Decumbent

Growth rate

Slow

Height at 20 years

1

Maximum height

1.5

Foliage color

Green

Summer foliage density

Dense

Winter foliage density

Dense

Foliage retention

No

Flowering

Yes

Flower color

White

Fruit/seeds

No

Fruit/seed color

Brown

Allelopath

No

Nitrogen fixing

None

Toxic

None

C:N Ratio

High

Fire Resistant

No

Foliage Texture

Medium

Low-growing Grass

No

Resproutability

Yes

Coppice Ability

No

Bloat

None

Snow Buckwheat

Growing Conditions

Adapted to Coarse Soil

Yes

Adapted to Medium Soil

Yes

Adapted to Fine Soil

No

Anaerobic tolerance

Low

CaCO₃ tolerance

High

Cold Stratification

Yes

Drought tolerance

High

Nutrient requirement

Low

Fire tolerance

Low

Frost-free days minimum

120

Hedge tolerance

None

Moisture requirement

Low

pH range

6.5 to 8.0

Plants per acre

2700 to 7000

Precipitation range (in)

6 to 18

Min root depth (in)

12

Salt tolerance

None

Shade tolerance

Intermediate

Min temperature (F)

-23

Cultivating

Snow Buckwheat

Flowering season

Late Summer

Commercial availability

Routinely Available

Fruit/seed abundance

Low

Fruit/seed season

Summer to Fall

Fruit/seed persistence

No

Propagated by bare root

Yes

Propagated by bulb

No

Propagated by container

Yes

Propagated by corm

No

Propagated by cuttings

No

Propagated by seed

Yes

Propagated by sod

No

Propagated by sprigs

No

Propagated by tubers

No

Seed per pound

315000

Seed spread rate

Slow

Seedling vigor

Medium

Small grain

No

Vegetative spread rate

None

Snow 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 niveum Douglas ex Benth. - snow buckwheat

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