Washingtonia filifera var. robusta, commonly known as the Mexican fan palm or California fan palm, is a majestic and fast-growing palm tree prized for its iconic silhouette and imposing size. This variety of Washingtonia filifera features a tall, slender trunk topped with a crown of large, fan-shaped leaves that can reach up to 1.5 metres (5 feet) in diameter. The leaves are typically green with a slight bluish tinge and have long, thread-like filaments that hang from the segments, giving it a somewhat shaggy appearance. It's a popular choice for landscaping in warm climates, adding a dramatic touch to gardens, parks, and avenues. It belongs to the Arecaceae family.
Origin: Washingtonia filifera var. robusta is native to the southwestern United States and northwestern Mexico.
Light: Washingtonia filifera var. robusta thrives in full sun. It prefers at least 6-8 hours of direct sunlight per day to encourage strong growth.
Water: Water regularly, especially during hot, dry periods. Allow the soil to dry out slightly between waterings, but avoid letting it dry out completely.
Soil: Washingtonia filifera var. robusta prefers well-drained soil. It can tolerate a range of soil types, but thrives in fertile, loamy soil.
Fertilising: Feed your Washingtonia filifera var. robusta with a slow-release palm fertiliser in spring and summer.
Temperature: Washingtonia filifera var. robusta is relatively hardy and can tolerate temperatures down to -8°C (18°F) for short periods. However, it prefers warm temperatures and thrives in subtropical and tropical climates.
Growth Habit: Washingtonia filifera var. robusta is a fast-growing palm that can eventually reach a height of 15-25 metres (50-82 feet).
Uses: Washingtonia filifera var. robusta is primarily grown as an ornamental plant.
Toxicity: Washingtonia filifera var. robusta is not known to be toxic to humans or pets. However, the sharp edges of the fronds can cause injury, so it's best to handle it with care.