SelecTree: Tree Detail
BLUE BUSH ACACIA
Photo Locations: San Marcos Growers - Santa Barbara, CA and UC Davis Arboretum - Davis, CA
A rare shrub or small tree, even in its native environment. Produces small silvery blue green leaves and bright yellow flower clusters. Can withstand hard frosts, tolerating temperatures below 15 degrees F.
Has fragrant Flower.
Native to Southern New South Whales Australia.
Additional Common Names
Blue Bush ACACIA, Bluebush Acacia
Rounded or Vase Shape.
Has Evergreen foliage.
Height: 12 - 20 feet.
Width: 10 - 15 feet.
Growth Rate: 36 Inches per Year.
Longevity Less than 50 years.
Leaves Lanceolate to Oblong, Silver, Blue to Blue Green, No Change, Evergreen.
Flowers Showy. Fragrant Yellow. Flowers in Spring. Has perfect flowers (male and female parts in each flower).
Brown Pod, Large (1.50 - 3.00 inches), fruiting in Fall, Winter or Summer.
Bark Dark Brown to Black, Furrowed or Smooth.
Shading Capacity Rated as Moderately Dense in Leaf.
Litter Issue is Dry Fruit.
Tree Site Conditions & Constraints
Sunset Zones 13 - 24.
USDA Hardiness Zones 9 - 10.
Exposure Full Sun to Partial Shade.
Well Drained Soil.
Clay, Loam or Sand Texture.
Slightly Acidic to Slightly Alkaline Soil pH.
Seaside Tolerance is Good in Mild Zone.
Pests & Disease Information
Susceptible to Invasive Shot Hole Borer, Root Rot.
Health, Safety & Environmental Concerns
Branch Strength Rated as Weak.
Root Damage Potential Rated as Low.
Allergy Health Hazard.
Desirable Wildlife Plant.
Not Deer Palatable.
Special Uses & Values
Cite this tree:
SelecTree. "Acacia covenyi Tree Record." 1995-2019. Feb 23, 2019.
< https://selectree.calpoly.edu/tree-detail/acacia-covenyi >
SelecTree Nursery Connection Map
Cal Poly / ESRI