Ceanothus

Ceanothus

Ceanothus thyrsiflorus

A native California evergreen shrub that covers itself in stunning blue or purple flower clusters in spring. Extremely drought tolerant once established. One of the best native shrubs for the West Coast.

USDA Zones

7–10

Height

4 ft–10 ft at maturity

Bloom Season

March – May

Bloom Color

blue, purple, white

🦌 Deer ResistantDeer tend to avoid this plant🐕 Dog-Friendly†Not listed as toxic to dogs by common horticultural references. See disclaimer below.🐈 Cat-Friendly†Not listed as toxic to cats by common horticultural references. See disclaimer below.🐾 Groundhog ResistantGroundhogs tend to avoid this plant🌿 Native to USNative to North America — supports local wildlife and ecosystems🐝 Attracts PollinatorsAttracts bees and other pollinators🦋 Attracts ButterfliesAttracts butterflies

^† "Dog-Friendly" / "Cat-Friendly" means this plant is not listed as toxic by common horticultural references. It is not a guarantee of safety for all animals in all circumstances. If your pet ingests any plant, contact your vet or the ASPCA Animal Poison Control Center: (888) 426-4435.

# Ceanothus Care Guide Ceanothus (California Lilac) is a native evergreen shrub celebrated for its spectacular spring display of blue or purple flower clusters. Once established, it requires virtually no supplemental water. ## Planting Plant in fall or early spring in full sun with excellent drainage. Avoid clay soils or areas with summer irrigation. Space 6–10 feet apart. ## Watering Water deeply every 2 weeks for the first summer. Once established (after 1–2 years), do not water in summer — summer water is the primary cause of death. ## Pruning Light pruning after flowering to shape. Avoid heavy pruning — it does not regenerate from old wood. ## Caution Do not water established plants in summer. This is critical.

Sun Requirements

Soil Type

Care Requirements

Complete Care Guide