SelecTree: Tree Detail
Photo Locations: The Santa Barbara Botanic Garden - Santa Barbara, CA
Utility friendly tree.
A chaparral species, commonly found on rocky slopes on southern coastal foothills. This large, upright, multi-stemmed species has striking smooth reddish brown bark which can be accentuated with pruning. Delicate, white or pink, urn-shaped flowers occur in winter. Needs little water once established. Sudden Oak Death manifested as leaf spot and twig die-back.
Native to California.
An Arctostaphylos glauca in Sunol regional Park is registered as a California Big Tree. It measures 33 feet high, with a trunk circumference of 52 inches and a crown spread of 43 feet.
Additional Common Names
BIGBERRY MANZANITA, BLUE MANZANITA
Has Evergreen foliage.
Height: 15 - 20 feet.
Width: 15 - 20 feet.
Growth Rate: 12 to 24 Inches per Year.
Longevity 50 to 150 years or more.
Leaves Ovate, Green, No Change, Evergreen.
Flowers Showy. Pink or White. Flowers in Winter. Has perfect flowers (male and female parts in each flower).
Prolific, Green to Pink Drupe, Small (0.25 - 0.50 inches), fruiting in Winter or Summer.
Bark Striking Reddish Brown, Smooth.
Shading Capacity Rated as Moderate in Leaf.
Litter Issue is Wet Fruit.
Tree Site Conditions & Constraints
Sunset Zones 4 - 9 and 14 - 24.
USDA Hardiness Zones 8 - 10.
Exposure Full Sun.
Wet to Moist and Well Drained Soil.
Clay, Loam or Sand Texture.
Highly Acidic to Slightly Alkaline Soil pH.
Seaside Tolerance is Medium in Mild Zone.
Pests & Disease Information
Resistant to Verticillium. Susceptible to Aphids and Insect Galls, Armillaria and Sudden Oak Death.
Health, Safety & Environmental Concerns
Branch Strength Rated as Strong.
Root Damage Potential Rated as Low.
None Known Health Hazard.
Biogenic Emissions considered Low.
Fire Resistance is Favorable.
Desirable Wildlife Plant.
Attracts Birds and Bees.
Special Uses & Values
Cite this tree:
SelecTree. "Arctostaphylos glauca Tree Record." 1995-2020. Oct 27, 2020.
< https://selectree.calpoly.edu/tree-detail/arctostaphylos-glauca >