North America Native Plant

Blue Mountain Buckwheat

Botanical name: Eriogonum strictum

USDA symbol: ERST4

Life cycle: perennial

Habit: subshrub

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

Blue Mountain Buckwheat: A Hardy Western Native for Low-Water Gardens If you’re looking for a tough-as-nails native plant that laughs in the face of drought, say hello to Blue Mountain buckwheat (Eriogonum strictum). This unassuming perennial might not win any beauty contests at first glance, but don’t let its modest ...

Blue Mountain Buckwheat: A Hardy Western Native for Low-Water Gardens

If you’re looking for a tough-as-nails native plant that laughs in the face of drought, say hello to Blue Mountain buckwheat (Eriogonum strictum). This unassuming perennial might not win any beauty contests at first glance, but don’t let its modest appearance fool you – this little powerhouse is exactly what your water-wise garden has been waiting for.

What Is Blue Mountain Buckwheat?

Blue Mountain buckwheat is a native North American perennial that belongs to the buckwheat family. Despite its common name, it’s not actually related to the grain we use for pancakes! This hardy forb herb grows as a compact, single-crowned plant that stays relatively small, reaching about 2 feet in both height and width at maturity.

What makes this plant special is its incredible resilience. With gray-green foliage that forms a dense summer canopy and cheerful yellow flowers that bloom in late spring, it’s perfectly adapted to life in some pretty challenging conditions.

Where Does It Grow Naturally?

This native beauty calls the western regions of North America home, naturally occurring across British Columbia, California, Idaho, Montana, Nevada, Oregon, and Washington. It’s particularly fond of mountainous areas where summers are dry and winters can be harsh.

Why Consider Blue Mountain Buckwheat for Your Garden?

Here are some compelling reasons to give this native plant a spot in your landscape:

  • Drought champion: Once established, it has incredibly high drought tolerance and low water needs
  • Pollinator magnet: Those sunny yellow flowers attract bees, butterflies, and other beneficial insects
  • Low maintenance: Slow growth rate means less pruning, and it has low fertility requirements
  • Long-lived: This perennial will be a garden companion for many years to come
  • Native plant benefits: Supports local ecosystems and wildlife

Perfect Garden Situations

Blue Mountain buckwheat shines in specific garden settings:

  • Rock gardens and alpine plantings
  • Xerophytic (dry) garden designs
  • Native plant landscapes
  • Slope stabilization projects
  • Areas with poor, well-draining soil
  • Low-water or drought-tolerant gardens

Growing Conditions and Care

The secret to success with Blue Mountain buckwheat is remembering where it comes from – those tough mountain environments have shaped its preferences:

Soil Requirements

  • Well-draining soil is absolutely essential
  • Thrives in coarse or medium-textured soils
  • Avoid heavy clay or fine-textured soils
  • pH range of 6.0 to 8.6 works well
  • Low fertility is actually preferred

Light and Water

  • Full sun is a must – shade intolerant
  • Very low water needs once established
  • Can handle annual precipitation of 10-18 inches
  • Excellent drought tolerance

Climate Considerations

  • Hardy in USDA zones 4-8
  • Can tolerate temperatures down to -23°F
  • Needs at least 145 frost-free days
  • Active growing period is spring and summer

Planting and Propagation Tips

Getting Blue Mountain buckwheat established requires a bit of patience, but it’s worth the wait:

  • Seeds need cold treatment: Cold stratification is required for germination
  • Timing matters: Seeds can be collected in summer when available
  • Planting density: Space plants for 700-1,100 per acre in restoration settings
  • Container growing: Can be propagated in containers or as bare root plants
  • Be patient: Growth rate is slow, and seedling vigor is medium

What to Expect

Blue Mountain buckwheat won’t give you instant gratification, but it rewards patience. The plant grows slowly to form a neat, semi-erect clump with a single crown. In late spring, you’ll be treated to clusters of small yellow flowers that, while not showy from a distance, create a lovely display up close and buzz with pollinator activity.

The gray-green foliage provides year-round structure, though it becomes more porous in winter. Don’t expect autumn color – this plant’s beauty lies in its subtle, enduring presence rather than seasonal drama.

The Bottom Line

Blue Mountain buckwheat might not be the flashiest plant in the garden center, but for gardeners in western regions looking to create sustainable, low-water landscapes that support native wildlife, it’s a gem. Its incredible drought tolerance, pollinator benefits, and authentic native status make it a valuable addition to the right garden setting.

Just remember: this plant evolved in challenging mountain conditions, so don’t coddle it with rich soil and regular watering. Give it the tough love it prefers – well-draining soil, full sun, and minimal fuss – and you’ll have a reliable, long-lived garden companion that truly belongs in your local landscape.

How

Blue Mountain Buckwheat

Grows

Growing season

Spring and Summer

Lifespan

Long

Growth form & shape

Single Crown and Semi-Erect

Growth rate

Slow

Height at 20 years

2

Maximum height

2.2

Foliage color

Gray-Green

Summer foliage density

Dense

Winter foliage density

Porous

Foliage retention

No

Flowering

Yes

Flower color

Yellow

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

Blue Mountain Buckwheat

Growing Conditions

Adapted to Coarse Soil

Yes

Adapted to Medium Soil

Yes

Adapted to Fine Soil

No

Anaerobic tolerance

None

CaCO₃ tolerance

Medium

Cold Stratification

Yes

Drought tolerance

High

Nutrient requirement

Low

Fire tolerance

Low

Frost-free days minimum

145

Hedge tolerance

None

Moisture requirement

Low

pH range

6.0 to 8.6

Plants per acre

700 to 1100

Precipitation range (in)

10 to 18

Min root depth (in)

14

Salt tolerance

Low

Shade tolerance

Intolerant

Min temperature (F)

-23

Cultivating

Blue Mountain Buckwheat

Flowering season

Late Spring

Commercial availability

No Known Source

Fruit/seed abundance

Medium

Fruit/seed season

Summer to Summer

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

300000

Seed spread rate

Slow

Seedling vigor

Medium

Small grain

No

Vegetative spread rate

None

Blue Mountain 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 strictum Benth. - Blue Mountain buckwheat

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