SelecTree: Tree Detail

BLUE BLOSSOM
Ceanothus thyrsiflorus

Ceanothus thyrsiflorus Ceanothus thyrsiflorus Ceanothus thyrsiflorus Ceanothus thyrsiflorus Ceanothus thyrsiflorus Ceanothus thyrsiflorus Ceanothus thyrsiflorus Ceanothus thyrsiflorus Ceanothus thyrsiflorus Ceanothus thyrsiflorus Ceanothus thyrsiflorus Ceanothus thyrsiflorus Ceanothus thyrsiflorus Ceanothus thyrsiflorus Ceanothus thyrsiflorus

Photo Locations: Cal Poly State University - San Luis Obispo, CA, Swanton Pacific Ranch - Davenport, CA and Tilden Regional Parks Botanical Garden - Berkeley, CA

General Notes

Utility Friendly Tree Utility friendly tree.

One of the hardiest ceanothus for inland valley and foothill areas. Also white flowered variety 'Snow Flurry'.

Has fragrant Flower.

Native to California.

Family: Rhamnaceae

Additional Common Names

BLUE BLOSSOM, BLUEBRUSH

Tree Characteristics

Oval or Rounded Shape.

Has Evergreen foliage.

Height: 5 - 20 feet.

Width: 5 - 20 feet.

Growth Rate: 24 to 36 Inches per Year.

Longevity Less than 50 years.

Leaves Oblong, Glossy Medium to Dark Green, No Change, Evergreen.

Flowers Showy. Fragrant Blue. Flowers in Spring.

Black or Purple Capsule, Small (0.25 - 0.50 inches), fruiting in Winter or Summer.

Bark Dark Brown or Red Brown, Scaly or Smooth.

Shading Capacity Rated as Moderately Dense in Leaf.

Tree Site Conditions & Constraints

Sunset Zones 5 - 9 and 14 - 24.

USDA Hardiness Zones 8 - 10.

Exposure Full Sun to Partial Shade.

Moist to Dry and Well Drained Soil.

Loam or Sand Texture.

Highly Acidic to Slightly Alkaline Soil pH.

Seaside Tolerance is Good in Moderate Zone.

Pests & Disease Information

Susceptible to Aphids, Crown Rot, Fusarium, Oak Root Rot, Phytophthora and Root Rot.

Health, Safety & Environmental Concerns

Branch Strength Rated as Medium.

Root Damage Potential Rated as Low.

Allergy Health Hazard.

Biogenic Emissions considered Moderate.

Fire Resistance is Favorable.

Attracts Birds and Bees.

Deer Palatable.

Special Uses & Values

Screen.

Cite this tree:
SelecTree. "Ceanothus thyrsiflorus Tree Record." 1995-2018. Feb 20, 2018.
< https://selectree.calpoly.edu/tree-detail/ceanothus-thyrsiflorus >

SelecTree Nursery Connection Map
Cal Poly / ESRI