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California digger bee

Anthophora californica

Large fuzzy bee with reddish-brown body hair and iridescent wings. Solitary ground-nester, males perch on low plants awaiting females. Powerful pollinator for native wildflowers and early-spring fruits.

Plants that support California digger bee

14 plants

Black Sage

Salvia mellifera

high

shrub

Spring specialist; uses pollen for larval provisions Apr-May

Bay Area native

Blue Witch

Solanum umbelliferum

moderate

shrub

Spring nesting season foraging

Bay Area native

California Chia

Salvia columbariae

high

annual

Spring and early summer nectar source during active foraging

Bay Area native

Chaparral Currant

Ribes malvaceum

high

shrub

Nesting and pollen provisioning during fall bloom period

Bay Area native

Coast Larkspur

Delphinium hesperium subsp. hesperium

high

perennial herb

Spring foraging for pollen and nectar to provision nests

Bay Area native

Deerweed

Acmispon glaber

high

shrub

Spring foraging resource for early season emergence

Bay Area native

Desert Blue Bells

Phacelia campanularia

high

perennial herb

Specialist pollen forager during Phacelia bloom

Bay Area native

Pacific Pea

Lathyrus vestitus var. vestitus

high

vine

Adult specialist bee forages on legume pollen

Bay Area native

Red ribbons

Clarkia concinna

moderate

annual

Native bee pollinator utilizing floral resources

Bay Area native

Showy Penstemon

Penstemon spectabilis

high

perennial herb

Spring nesting and pollen provisioning for larvae

Bay Area native

Silver bush lupine

Lupinus albifrons

high

shrub

Spring pollen and nectar provisioning

Bay Area nativeKeystone species

Southern honeysuckle

Lonicera subspicata

high

shrub

Early spring nectar source for emerging solitary bees

Bay Area native

Western Redbud

Cercis occidentalis

high

tree

Spring blooms coincide with nesting season March-May

Bay Area native

Yerba Santa

Eriodictyon californicum

high

shrub

Spring-blooming specialist; primary pollen source for nesting females

Bay Area native