North America Native Plant

Bastardsage

Botanical name: Eriogonum wrightii

USDA symbol: ERWR

Life cycle: perennial

Habit: subshrub

Native status: Native to the lower 48 states  

Bastardsage: A Tough-as-Nails Native for Water-Wise Gardens If you’re looking for a plant that laughs in the face of drought and still manages to look good doing it, let me introduce you to bastardsage (Eriogonum wrightii). This scrappy little native might not have the prettiest common name, but don’t let ...

Bastardsage: A Tough-as-Nails Native for Water-Wise Gardens

If you’re looking for a plant that laughs in the face of drought and still manages to look good doing it, let me introduce you to bastardsage (Eriogonum wrightii). This scrappy little native might not have the prettiest common name, but don’t let that fool you – it’s a real gem for gardeners who want beauty without the fuss.

What Is Bastardsage?

Bastardsage is a perennial forb native to the southwestern United States, naturally growing across Arizona, California, Nevada, New Mexico, Texas, and Utah. Despite its common name, it’s not actually related to sage at all – it’s a member of the buckwheat family. This hardy little plant grows as a compact, rounded shrub reaching about 2 feet tall and wide at maturity.

Why Your Garden Needs This Tough Cookie

There are plenty of reasons to fall in love with bastardsage, especially if you’re gardening in challenging conditions:

  • Extreme drought tolerance: Once established, this plant needs very little supplemental water
  • Native status: Supporting local ecosystems while reducing maintenance
  • Pollinator magnet: Summer blooms attract bees, butterflies, and other beneficial insects
  • Long-lived: This perennial will be a garden companion for many years
  • Low maintenance: Slow growth means less pruning and fussing

What Does Bastardsage Look Like?

Picture a compact, semi-erect plant with distinctive white-gray foliage that gives it an almost silvery appearance. In summer, it produces clusters of small white flowers that create a lovely contrast against the pale leaves. The blooms aren’t showy from a distance, but up close they’re quite charming and buzzing with pollinator activity.

Don’t expect rapid results, though – bastardsage has a slow growth rate and takes its sweet time reaching that 2-foot mature height. But good things come to those who wait, and this plant’s longevity makes it worth the patience.

Perfect Garden Roles

Bastardsage shines in several landscape situations:

  • Rock gardens: Its compact size and drought tolerance make it perfect for rocky, well-draining spots
  • Xeriscapes: A natural choice for water-wise landscapes
  • Native plant gardens: Pairs beautifully with other southwestern natives
  • Border plantings: Creates neat, rounded forms along pathways or garden edges
  • Ground cover: Plant multiple specimens for broader coverage

Growing Conditions and Care

The secret to success with bastardsage is understanding that it’s adapted to tough conditions. Here’s what it needs to thrive:

Soil Requirements

  • Well-draining soil is absolutely essential – this plant hates wet feet
  • Prefers coarse or medium-textured soils over heavy clay
  • pH range of 6.0 to 8.0 works well
  • Low fertility is fine – rich soils aren’t necessary

Water and Climate

  • High drought tolerance once established
  • Prefers 8-14 inches of annual precipitation
  • Hardy in USDA zones 5-9 (tolerates temperatures down to -13°F)
  • Needs at least 200 frost-free days
  • Can handle intermediate shade but prefers full sun

Planting and Establishment Tips

Getting bastardsage off to a good start requires some patience and the right approach:

  • Timing: Plant in fall or early spring for best establishment
  • Spacing: Allow 2-3 feet between plants for mature spread
  • Initial watering: Provide regular water the first year to establish roots
  • Mulching: Use gravel or decomposed granite rather than organic mulch
  • Patience required: Seedling vigor is low, so don’t expect rapid growth

Propagation and Availability

If you want to add bastardsage to your garden, you’ll need to do a bit of hunting. Commercial availability is limited to field collections, so check with native plant societies or specialized native plant nurseries. The plant can be grown from seed, but with 400,000 seeds per pound, you’ll have plenty to work with if you can find them!

Seeds can be sown directly in fall, and the plant can also be propagated through bare root or container methods.

Is Bastardsage Right for Your Garden?

Bastardsage is an excellent choice if you’re gardening in the Southwest, dealing with drought conditions, or simply want to support native ecosystems with minimal effort. Its slow growth and specific soil requirements mean it’s not for every garden, but in the right conditions, it’s a reliable, long-lived addition that will reward you with years of easy-care beauty.

Just remember: this is a plant that thrives on benign neglect. Too much water or rich soil will do more harm than good. Give it the tough love it’s adapted for, and bastardsage will be a faithful garden companion for years to come.

How

Bastardsage

Grows

Growing season

Spring and Fall

Lifespan

Long

Growth form & shape

Single Crown and Semi-Erect

Growth rate

Slow

Height at 20 years

2

Maximum height

2.0

Foliage color

White-Gray

Summer foliage density

Moderate

Winter foliage density

Porous

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

Medium

Fire Resistant

No

Foliage Texture

Medium

Low-growing Grass

No

Resproutability

Yes

Coppice Ability

No

Bloat

None

Bastardsage

Growing Conditions

Adapted to Coarse Soil

Yes

Adapted to Medium Soil

Yes

Adapted to Fine Soil

No

Anaerobic tolerance

None

CaCO₃ tolerance

None

Cold Stratification

No

Drought tolerance

High

Nutrient requirement

Low

Fire tolerance

Medium

Frost-free days minimum

200

Hedge tolerance

None

Moisture requirement

Low

pH range

6.0 to 8.0

Plants per acre

1200 to 1700

Precipitation range (in)

8 to 14

Min root depth (in)

12

Salt tolerance

Low

Shade tolerance

Intermediate

Min temperature (F)

-13

Cultivating

Bastardsage

Flowering season

Summer

Commercial availability

Field Collections Only

Fruit/seed abundance

Medium

Fruit/seed season

Fall to Fall

Fruit/seed persistence

Yes

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

400000

Seed spread rate

Slow

Seedling vigor

Low

Small grain

No

Vegetative spread rate

None

Bastardsage

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 wrightii Torr. ex Benth. - bastardsage

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