San Diego Buckbrush

(Ceanothus cyaneus)

San Diego Buckbrush (Ceanothus cyaneus)

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Estimated Native Range
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Summary

Ceanothus cyaneus, commonly known as San Diego Buckbrush, is an evergreen shrub native to the chaparral and coastal sage scrub of Southern California and Baja California in Mexico. It typically grows to less than 3 meters in height and is known for its open, rounded form. The plant boasts glossy green foliage and clusters of brilliant blue flowers that bloom profusely in the spring, with a less showy display in the winter. The flowers are highly attractive to pollinators such as bees and butterflies.

San Diego Buckbrush is valued for its drought tolerance and vibrant floral display, making it a popular choice for water-wise gardens, native plant landscapes, and as an ornamental in coastal areas. It is often used for slope stabilization and habitat restoration as well. This plant thrives in full sun to part shade and requires well-drained soils, preferably with a low organic content. It is not frost-tolerant and may suffer damage in temperatures below freezing. While generally low-maintenance, it can be susceptible to root rot if overwatered or planted in poorly drained soils.CC BY-SA 4.0

Plant Description

  • Plant Type: Shrubs
  • Height: 3-15 feet
  • Width: 3-12 feet
  • Growth Rate: Moderate
  • Flower Color: Blue, Purple
  • Flowering Season: Spring
  • Leaf Retention: Evergreen

Growth Requirements

  • Sun: Full Sun, Part Shade
  • Water: Low
  • Drainage: Fast

Common Uses

Bee Garden, Bird Garden, Butterfly Garden, Drought Tolerant, Fragrant, Hummingbird Garden, Low Maintenance, Showy Flowers

Natural Habitat

Chaparral and coastal sage scrub of Southern California and Baja California in Mexico

Other Names

Common Names: Lakeside Ceanothus , San Diego Buckbrush , San Diego Mountain LIlac

Scientific Names: Ceanothus cyaneus

GBIF Accepted Name: Ceanothus cyaneus Eastw.