California Fan Palm

Washingtonia filifera

Native to:
Mexico, United States, Virgin Islands

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Arecaceae
Genus:
Washingtonia
Species:
Washingtonia filifera
USDA Symbol:
WAFI

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Tree
Height:
1800 cm
Light Requirements:
Full Sun
Drought Tolerance:
High
Bloom Months:
may,jun
Bloom Colors:
white, cream

Wildlife Benefits

Caterpillars:
★☆☆☆☆ Recorded caterpillar host plant (HOSTS Database)

Host Plant for Caterpillars

Litoprosopus coachella

Garden & Ecology Notes

Wildlife Value:
birds, small mammals
Deer Resistant:
Yes
Salt Tolerant:
Yes
Fire Ecology:
Fire adapted — tolerates or benefits from fire
Fire Notes:
Resprouts from the trunk after fire damage; dead frond skirts can carry fire but the palm itself survives most fires in its native desert oasis habitat.

Soil Requirements

Soil Type:
sandy, well-drained, nutrient-poor soil
pH:
6.0 - 8.0 (neutral to slightly alkaline)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
Thrives in arid desert environments

Propagation & Germination

Stratification:
None required
Germination Time:
14–90 days
Notes:
Seeds germinate best with warm temperatures (85-95°F) and consistent moisture. Fresh seed germinates more readily than older seed.

The above propagation data sourced from Claude AI