SelecTree: Tree Detail
Photo Locations: San Luis Obispo, CA
General NotesGrows best in light, well-drained, fertile soil, but tolerates clay sloped areas.
Has fragrant Flower.
Native to Southeastern Australia and Tasmania.
Spreading with a High Canopy.
Rounded or Vase Shape.
Has Evergreen foliage.
Height: 50 feet.
Width: 40 - 50 feet.
Growth Rate: 36 Inches per Year.
Longevity Less than 50 years.
Leaves Bipinnately Compound, Gray Green, No Change, Evergreen.
Flowers Showy. Fragrant Yellow to cream-colored. Flowers in Spring or Winter. Has perfect flowers (male and female parts in each flower).
Few, Brown Pod, Large to Very Large (1.50 to 3.00 or more inches), fruiting in Spring, Summer or Fall.
Bark Dark Gray, Furrowed or Smooth.
Shading Capacity Rated as Moderate to Dense in Leaf.
Litter Issue is Dry Fruit.
Tree Site Conditions & Constraints
Sunset Zones 8, 9 and 14 - 24.
USDA Hardiness Zones 8 - 11.
Exposure Full Sun to Partial Shade.
Moist to Dry and Well Drained Soil.
Clay, Loam or Sand Texture.
Slightly Acidic to Highly Alkaline Soil pH.
Seaside Tolerance is Good in Mild Zone.
Pests & Disease Information
Resistant to Oak Root Fungus. Susceptible to Beetle Borers, Root Rot.
Health, Safety & Environmental Concerns
Branch Strength Rated as Weak.
Root Damage Potential Rated as High.
Allergy Health Hazard.
Not Deer Palatable.
Special Uses & Values
Cite this tree:
SelecTree. "Acacia mearnsii Tree Record." 1995-2018. Apr 20, 2018.
< https://selectree.calpoly.edu/tree-detail/acacia-mearnsii >