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Yerba Santa

Eriodictyon californicum

Care

Sun

full sun

Water

very low

Soil

dry, well-drained; poor rocky soils fine

Size

3–8ft tall , 3–6ft wide

Bloom

May-Jul · lavender, white

Foliage

Evergreen

Deer

Resistant

Container

Friendly

Flowers

Prized

Native Range

California and Oregon foothills and mountains

Clusters of tubular lavender to white flowers

Medicinal herb; leaves used for respiratory ailments; spreads by rhizomes

Care Guide

Planting

Plant your yerba santa in full sun with fast or medium-draining soil - it thrives in poor, rocky conditions and tolerates a variety of soil types as long as drainage is excellent. Space it with room to spread, since this plant grows via underground rhizomes and can form dense thickets; plant in fall or winter to take advantage of the Bay Area's rainy season. Avoid areas where you'll need to contain it strictly, or plan to manage its spread.

After Planting

Water twice monthly during your first summer to establish the plant, then wean off completely - yerba santa is extremely drought-tolerant once established and needs very little supplemental water. This evergreen shrub requires minimal pruning; the main mistake people make is overwatering, which can rot the roots and kill this drought-adapted plant. Year one, expect slow growth as the plant establishes its root system, and enjoy the white to light purple bell-shaped flowers that appear from May through July.

Visit Calscape for more information about Yerba Santa

Endangered & Threatened Species Supported

Edith's checkerspot butterfly Euphydryas editha
CA: Endangered

Some subspecies federally protected; species has state endangered designation

Chalcedon Checkerspot Euphydryas chalcedona
CA Special Concern

California Species of Special Concern

Wildlife Supported

Insects

Larval Host · Spring

Host plant for caterpillars; critical for larval development

Larval Host · Spring

Obligate host plant; regional populations depend on plant availability

Pollen · Spring

Oligolectic specialist; yerba santa pollen key to brood provisioning

Pollen · Spring

Spring-blooming specialist; primary pollen source for nesting females

Pollen · Spring

Specialist bee; May-July blooms provide larval food provisioning

Nectar · Spring

May-July blooms support colony establishment and worker foraging

mod Honey bee
Nectar · Spring

May-July bloom supports hive nectar collection and brood rearing

Nectar · Spring

Migratory species; may use blooms during spring and fall passage

+4 more species

Birds

Nectar · Spring

Primary nectar source during May-July bloom; supports breeding season energy demands

Nectar · Spring

Migration staging fuel; blooms align with spring northbound passage May-June

Where to Buy

East Bay Wilds

2110 Eighth St, Suite 202, Berkeley

Fri 9:30am-4pm (occasional Sat, call ahead)

1.5 mi (510) 409-5858 Website
Native Here Nursery

101 Golf Course Dr, Tilden Regional Park, Berkeley

Sat 10am-2pm

3.0 mi (510) 549-0211 Website