SelecTree: Tree Detail
Photo Locations: Los Angeles County Arboretum - Arcadia, CA, Santa Barbara, CA, Cal Poly Campus - San Luis Obispo, CA, Lotusland - Santa Barbara, CA and Quail Botanical Gardens - Encinitas, CA
General NotesA weak-branched evergreen tree. Prune to strengthen branches. Needs well-drained soil.
Has fragrant Flower.
Native to Australia.
A Hymenosporum flavum in Santa Barbara is registered as a California Big Tree. It measures 64 feet high, with a trunk circumference of 82 inches and a crown spread of 45 feet.
Erect with a Low Canopy.
Conical or Rounded Shape.
Has Evergreen foliage.
Height: 20 - 35 feet.
Width: 15 - 20 feet.
Growth Rate: 12 to 24 Inches per Year.
Longevity 40 to 150 years.
Leaves Lanceolate to Oblong, Dark Green, No Change, Evergreen.
Flowers Showy. Fragrant Yellow. Flowers in Spring or Summer. Has perfect flowers (male and female parts in each flower).
Brown or Mostly Green Capsule, Medium (0.50 - 1.50 inches), fruiting in Summer or Fall.
Bark Light Green or Light Gray, Rough.
Shading Capacity Rated as Moderate in Leaf.
Litter Issue is Dry Fruit.
Tree Site Conditions & Constraints
Sunset Zones 8, 9 and 14 - 23.
USDA Hardiness Zones 9 - 10.
Exposure Full Sun to Partial Shade.
Loam or Sand Texture.
Slightly Acidic to Highly Alkaline Soil pH.
Salinity Tolerance is Moderate on Coast.
Seaside Tolerance is Good in Mild Zone.
Health, Safety & Environmental Concerns
Branch Strength Rated as Weak.
Root Damage Potential Rated as Low.
None Known Health Hazard.
Biogenic Emissions considered Low.
Attracts Birds and Bees.
Special Uses & Values
Cite this tree:
SelecTree. "Hymenosporum flavum Tree Record." 1995-2020. Jul 11, 2020.
< https://selectree.calpoly.edu/tree-detail/hymenosporum-flavum >
SelecTree Nursery Connection Map
Cal Poly / ESRI