Deerbrush Ceanothus
Ceanothus integerrimus
Last reviewed: June 2026
Deerbrush Ceanothus (Ceanothus integerrimus) is not on the ASPCA Animal Poison Control Center toxic plant list for dogs or cats (aspca.org, last reviewed 2026-05-21). 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"–96" W
Bloom
Apr, May, Jun
Native to
AZ, CA, NM, OR and 1 more states
Pollinators
bees, butterflies, hummingbirds
Browse plants for this ecoregion
Deerbrush ceanothus is a deciduous shrub that grows 3-8 feet tall with an equal spread. It produces showy clusters of white to pale blue flowers in spring through early summer that create a beautiful display. It thrives in sunny locations with low water once established.
In an HOA neighborhood
Deerbrush Ceanothus is an HOA-friendly choice in the right placement. Maintenance level: moderate. Tidiness: 3 out of 5.
Works well in: backyard only, mid zone, foundation.
- Looks somewhat bare and less ornamental when dormant
- Can have a slightly irregular growth habit if not pruned
- May be considered too large for smaller front yard spaces
Wildlife value
Host plant for Chalcedon checkerspot butterfly, Pale swallowtail butterfly.
This native shrub is highly valuable to pollinators, attracting numerous bee species, butterflies, and hummingbirds during its blooming period. The dense growth provides shelter for birds and small wildlife.
Native range data from the USDA PLANTS Database and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
Does Deerbrush Ceanothus fit your yard? Open it in Pollinator Patch to check it against your sun, soil, and HOA-conscious filters.