SelecTree: Tree Detail
RED FLOWERING GUM
Photo Locations: Los Angeles County Arboretum - Arcadia, CA, Morro Bay, CA and Alice Keck Memorial Garden - Santa Barbara, CA
Red flowering gum is very desirable as a flowering accent tree, with its profusion of bright flower clusters in late summer, and sporadically throughout the year. It prefers temperate coastal conditions, where it tolerates dryness and salt spray. It is drought and smog tolerant. Hardiness estimate : 25-30 degrees F. Leaves have no dot glands when held up to the light (see photo).
Has fragrant Leaf.
Native to Western Australia.
A Corymbia ficifolia in San Francisco, CA is registered as a California Big Tree. It measures 40 feet high, with a trunk circumference of 243 inches and a crown spread of 58 feet.
Additional Common Names
RED FLOWERING GUM, SCARLET GUM
Erect or Spreading with a Low Canopy.
Has Evergreen foliage.
Height: 18 - 45 feet.
Width: 15 - 60 feet.
Growth Rate: 24 Inches per Year.
Longevity 50 to 150 years.
Leaves Ovate, Dark Green, No Change, Evergreen.
Flowers Showy. Orange, Pink, Red or Rose. Flowers in Fall, Winter, Spring or Summer. Has perfect flowers (male and female parts in each flower).
Brown Capsule, Medium (0.50 - 1.50 inches), fruiting in Spring, Summer or Fall Wildlife use it.
Bark Light Gray or Red Brown, Exfoliating or Furrowed.
Shading Capacity Rated as Dense in Leaf.
Litter Issue is Dry Fruit.
Tree Site Conditions & Constraints
Sunset Zones 5 - 6 and 8 - 24.
USDA Hardiness Zones 9 - 10.
Exposure Full Sun to Partial Shade.
Moist to Dry Soil.
Loam or Sand Texture.
Slightly Acidic to Highly Alkaline Soil pH.
Salinity Tolerance is Moderate on Coast.
Seaside Tolerance is Good in Moderate Zone.
Pests & Disease Information
Resistant to Texas Root Rot and Verticillium. Susceptible to Invasive Shot Hole Borer, Beetle Borers and Thrip, Armillaria, Phytophthora and Root Rot.
Health, Safety & Environmental Concerns
Branch Strength Rated as Medium.
Root Damage Potential Rated as Moderate.
None Known Health Hazard.
Desirable Wildlife Plant.
Attracts Birds and Bees.
Not Deer Palatable.
Wildlife use Fruit.
Special Uses & Values
Cite this tree:
SelecTree. "Corymbia ficifolia Tree Record." 1995-2020. Jun 3, 2020.
< https://selectree.calpoly.edu/tree-detail/corymbia-ficifolia >
SelecTree Nursery Connection Map
Cal Poly / ESRI