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PlantSnap
Plant Care
Mexican fan palm
(Washingtonia robusta)
Also Known As
Mexican fan palm, Giant fan palm
About This Plant
Washingtonia robusta is a tall palm tree with a single trunk that can grow up to 100 feet (30 meters) tall. It has long, fan-shaped leaves that can reach up to 5 feet (1.5 meters) in length and are green or bluish-green in color. The tree produces small, creamy-white flowers that are followed by small, black fruit.
Plant Care Instructions
Outdoor Size Range
Height: 30-100 feet (9-30 meters), Spread: 10-15 feet (3-4.5 meters)
Light Requirements
Full sun to partial shade. It prefers bright, direct sunlight, but it can also tolerate some shade.
Humidity Needs
It can tolerate low humidity levels, but it prefers moderate to high humidity.
Fertilizing Schedule
Fertilize with a balanced, slow-release fertilizer in the spring and summer.
Pruning Guidelines
Prune dead or damaged fronds as needed. It is also recommended to remove the fruit stalks to prevent the tree from becoming too heavy and toppling over.
Common Pests and Diseases
Common pests include spider mites, mealybugs, and scale insects. Diseases include Fusarium wilt and diamond scale.
Indoor Size Range
Not suitable for indoor growth
Watering Schedule
Water deeply and regularly, but allow the soil to dry out slightly between waterings. It is drought-tolerant and can survive periods of low water.
Temperature Range
It prefers warm temperatures between 65-85°F (18-29°C), but it can also tolerate temperatures as low as 20°F (-6°C).
Growing Season
Spring and summer are the optimal growing seasons for Washingtonia robusta.
Growing Difficulty Level
Washingtonia robusta is relatively easy to grow and maintain. It is a hardy and drought-tolerant plant that can thrive in a variety of conditions.
USDA Hardiness Zones
USDA hardiness zones 9b-11
Did You Know?
The Mexican fan palm is often used in landscaping and can be seen lining the streets of many cities in the southwestern United States.
