Data provided by the participants of the Consortium of California Herbaria

View additional distribution information on the Jepson eflora

California buckwheat (Eriogonum fasciculatum) is a shrub with a variable appearance, forming a patchy, compact bramble or a spreading bush. The leaves are leathery, woolly on the undersides, and rolled under along the edges. Profuse clusters of pink to white and cream-colored flowers appear as early as March and dry to a pretty red rust color.


California buckwheats are tough and easy to grow, even in very dry conditions. They prefer a well draining sunny site. Once established, no water is needed but the plant can tolerate occasional summer water. As the soil dries, it sheds its dried flowers and a significant portion of its small blade-like leaves, creating natural mulch. Low growing forms make a good spreading ground cover, and taller varieties can even be shaped into hedges.


California Buckwheat is a keystone species for sagebrush scrub ecosystems, and a great choice for wildlife and butterfly gardens. It is attractive to honey bees and a good source of nectar over many months in drier areas.

Plant type

Shrub, Perennial herb

Size

1 - 7 ft Tall
3 ft Wide

Form

Rounded, Mounding, Spreading

Growth rate

Fast, Slow

Dormancy

Evergreen

Calscape icon
Color

Yellow, Cream, Pink, White

Flowering season

Summer, Spring, Fall

Special uses

Bank stabilization, Deer resistant, Groundcover

Sun

Full Sun

Water

Low, Very Low

Summer irrigation

Max 1x / month once established, Never irrigate once established

Ease of care

Easy

Cold tolerance

Tolerates cold to 15° F

Soil drainage

Fast, Medium, Slow

Soil description

Prefers loamy soils.
Soil PH: 5.0 - 8.5

Maintenance

Can handle hard pruning; taller varieties can even be shaped into edged/hedged plantings.

Propagation

For propagating by seed: No treatment.

Site type

Dry slopes, often south facing as a common component of Coastal Sage Scrub. Inland it may be found in Valley Grassland. In high desert areas, it occurs in Sagebrush Scrub and Pinyon-Juniper Woodland. It sometimes occurs in low desert areas as part of Creosote Bush Scrub

Plant communities

Chaparral, Coastal Scrub, Creosote Bush Scrub, Desert-Holly Scrub, Joshua Tree Woodland, Pine-Juniper Woodland, Sagebrush, Shadscale Scrub, Southern Oak Woodland

Many companions including Brittlebush (Encelia spp.), Sagebrush (Artemisia spp.), Sage (Salvia spp.), Manzanita (Arctostaphylos spp.), Ceanothus species, Yucca species, Dudleya species, and cactus species

Bats
Birds
Bees
Caterpillars
Butterflies

Butterflies and moths supported

16 confirmed and 36 likely

Confirmed Likely

Mormon Metalmark

Apodemia mormo

Bramble Hairstreak

Callophrys dumetorum

Thorne's Hairstreak

Callophrys loki

Chlorochlamys appellaria