SelecTree: Tree Detail
COMMON FLANNEL BUSH
Photo Locations: Strybing Arboretum - San Francisco, CA and UC Santa Cruz Arboretum - Santa Cruz, CA
Utility friendly tree.
Cannot tolerate summer water. Leaves and capsules have irritating hairs.
Native to California.
Previously listed in the Sterculiaceae family.
Oval or Rounded Shape.
Has Evergreen foliage.
Height: 20 feet.
Width: 12 feet.
Growth Rate: 36 Inches per Year.
Longevity Less than 50 years.
Leaves Lobed and Palmate, Medium to Dark Green, No Change, Evergreen.
Flowers Showy. Yellow. Flowers in Spring. Has perfect flowers (male and female parts in each flower).
Brown or Mostly Green Capsule, Medium (0.50 - 1.50 inches), fruiting in Fall.
Bark Dark Brown, Red Brown or Light Green, Furrowed, Scaly or Smooth.
Shading Capacity Rated as Moderately Dense in Leaf.
Litter Issue is Dry Fruit.
Tree Site Conditions & Constraints
Sunset Zones 4 - 24.
USDA Hardiness Zones 8 - 10.
Exposure Full Sun.
Loam or Sand Texture.
Highly Acidic to Highly Alkaline Soil pH.
Seaside Tolerance is Good in Mild Zone.
Pests & Disease Information
Susceptible to Beetle Grubs, Beetle Leaves and Scales, Root Rot and Verticillium.
Health, Safety & Environmental Concerns
Branch Strength Rated as Medium.
Root Damage Potential Rated as Low.
Irritant Health Hazard.
Fire Resistance is Favorable.
Desirable Wildlife Plant.
Special Uses & Values
Cite this tree:
SelecTree. "Fremontodendron californicum Tree Record." 1995-2019. Dec 15, 2019.
< https://selectree.calpoly.edu/tree-detail/fremontodendron-californicum >
SelecTree Nursery Connection Map
Cal Poly / ESRI