SelecTree: Tree Detail
GIANT FISHTAIL PALM
Photo Locations: Huntington Botanical Gardens - San Marino, CA, Arroyo Grande, CA, UC Santa Barbara - Santa Barbara, CA, Quail Botanical Gardens - Encinitas, CA and Santa Barbara, CA
Large, fast-growing fishtail palm with huge fronds. A monocarpic tree (flower and fruit only once). Both trunk and seed can cause irritation when touched and should be handled with care. Caryota obtusa and C. gigas are likely the same species, although some disagreement exists. The ones growing in California, and most often cultivated, seem to be the C. gigas form of Caryota obtusa.
Native to India, Laos and Thailand.
Additional Common Names
GIANT FISHTAIL PALM, FISHTAIL PALM, THAI MOUNTAIN FISHTAIL PALM, BLACK TRUNK FISHTAIL PALM
Erect with a Low Canopy.
Feather Palm Shape.
Has Evergreen foliage.
Height: 30 - 50 feet.
Width: 20 - 30 feet.
Growth Rate: 12 to 24 Inches per Year.
Longevity 40 to 150 years.
Leaves Bipinnately Compound, Light Green, No Change, Evergreen.
Flowers Inconspicuous. . Has separate male and female flowers on the same tree (monoecious).
Black or Mostly Blue Drupe, Medium (0.50 - 1.50 inches).
Bark Brown or Black, Smooth.
Shading Capacity Rated as Moderately Dense in Leaf.
Tree Site Conditions & Constraints
Sunset Zones 23 - 24.
USDA Hardiness Zones 9 - 11.
Exposure Full Sun to Partial Shade.
Loam or Sand Texture.
Slightly Acidic Soil pH.
Salinity Tolerance is Moderate Inland.
Seaside Tolerance is Good in South Coast.
Health, Safety & Environmental Concerns
Branch Strength Rated as Medium.
Root Damage Potential Rated as Low.
Irritant Health Hazard.
Special Uses & Values
Cite this tree:
SelecTree. "Caryota gigas Tree Record." 1995-2019. Feb 23, 2019.
< https://selectree.calpoly.edu/tree-detail/caryota-gigas >