Chaparral whitethorn
Ceanothus leucodermis
Last reviewed: September 2026

Toxicity unknown
Chaparral whitethorn (Ceanothus leucodermis) 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
72"–180" H × 60"–120" W
Bloom
Apr, May, Jun
Native to
CA
Pollinators
bees, butterflies
Before you buy
Your city may pay you to plant this
Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 452 programs across 44 states, each with a link to the provider and the date we last checked it.
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Spiny, gray-stemmed shrub with sparse small leaves and dense clusters of white to pale blue flowers in spring, forming thickets on dry rocky slopes. Stiff thorn-tipped branches give it a rugged, wild appearance.
Wildlife value
Host plant for California tortoiseshell.
Spring flowers are heavily visited by native bees and butterflies, and the foliage is a larval host for the California tortoiseshell butterfly.
Common questions
- How much sun does Chaparral whitethorn need?
- Chaparral whitethorn grows best in full sun conditions.
- When does Chaparral whitethorn bloom?
- Chaparral whitethorn blooms in April, May, and June.
- Where is Chaparral whitethorn native?
- Chaparral whitethorn (Ceanothus leucodermis) is native to CA, per the World Checklist of Vascular Plants (Kew).
- What butterflies or moths does Chaparral whitethorn host?
- Chaparral whitethorn is a larval host plant for California tortoiseshell.
Native range data from the World Checklist of Vascular Plants (Kew). 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.
- It is dying right after planting
- Leaves turning yellow
- Wilting even though I watered it
- Brown crispy leaf tips
- Bugs on the plant
Ready to grow Chaparral whitethorn? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.
Planning a bed around it? Start a free plan with this plant
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