Washingtonia robusta (Mexican Fan Palm, Mexican Washingtonia)


Botanical Information

FamilyArecaceae
GenusWashingtonia
Speciesrobusta
CategoryTropicals, Woody
TypeTree (evergreen)
OriginCoastal Southern United States (Atlantic, Pacific) and Spain.

Details

USDA Hardiness Zone8b - 10
USDA Hardiness Ref.
Canadian Hardiness ZoneRequires cool season protection under glass.
Canada Hardiness Ref.
RHS Hardiness ZoneH3 - H5
RHS Hardiness Ref.
Temperature (°C)-10
Temperature (°F)15
Height25 - 31 m
Spread3 - 5 m
GrowthMedium

Description and Growing Information

ShapeUpright.
LandscapeUrban or street tree in southern/warm and dry climates, in mass plantings or as a specimen.
PropagationSeed.
CultivationPlant in dry, well-draining loamy to sandy soil in full sun. Can tolerate a wide variety of soils which makes it a great hardy urban or street tree.
HabitatDry open desert savannahs.
Bark/Stem DescriptionCoarse, woody light tan palm bark. Solitary trunk spanning approximately 0.3 - 0.6 m thick.
Leaf DescriptionThe leaves have a petiole up to 1 m long, and a palmate fan of sage green to yellowish-green leaflets up to 1 m long and 1 m wide. Matured and dead fronds hang down like a 'hula skirt'-like canopy below healthy live fronds.
Flower DescriptionInflorescences up to 3 m long with numerous small, pale orange-pink flowers.
Fruit DescriptionSpherical bluish-black drupes, 6 - 8 mm diameter; edible, though thin-fleshed.
Texture DescriptionCoarse.

Photographs