How much sun does Thick-leaf yerba-santa need?

Thick-leaf yerba-santa grows best in full sun conditions.

When does Thick-leaf yerba-santa bloom?

Thick-leaf yerba-santa blooms in March, April, and May.

Where is Thick-leaf yerba-santa native?

Thick-leaf yerba-santa (Eriodictyon crassifolium) is native to CA, per vouchered herbarium specimen records and regional native plant society lists.

What pollinators does Thick-leaf yerba-santa attract?

Thick-leaf yerba-santa draws bees and hummingbirds.

Thick-leaf yerba-santa

Name: Pollinator Patch
Author: Pollinator Patch

Eriodictyon crassifolium

Last reviewed: September 2026

Toxicity unknown

Thick-leaf yerba-santa (Eriodictyon crassifolium) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.

Light

full sun

Water

low

Size

36"–96" H × 36"–72" W

Bloom

Mar, Apr, May

Native to

Pollinators

bees, hummingbirds

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Browse plants for this ecoregion

Coast Range Northwestern Forested Mountains Sierra Nevada Central California Foothills and Coastal Mountains Central California Valley Southern California Mountains Mojave Basin and Range Sonoran Basin and Range Southern California/Northern Baja Coast

An upright shrub called thickleaf yerba santa, with felted, woolly gray-green leaves and clusters of lavender to violet tubular flowers held above the foliage in spring. Can spread by root suckers into loose colonies.

Wildlife value

Spring flower clusters are heavily visited by native bees and hummingbirds on dry chaparral slopes.

Common questions

How much sun does Thick-leaf yerba-santa need?: Thick-leaf yerba-santa grows best in full sun conditions.
When does Thick-leaf yerba-santa bloom?: Thick-leaf yerba-santa blooms in March, April, and May.
Where is Thick-leaf yerba-santa native?: Thick-leaf yerba-santa (Eriodictyon crassifolium) is native to CA, per vouchered herbarium specimen records and regional native plant society lists.
What pollinators does Thick-leaf yerba-santa attract?: Thick-leaf yerba-santa draws bees and hummingbirds.

Native range data from vouchered herbarium specimen records and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

If something looks wrong

Common plant problems, and what to check first

These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.

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