Syn. Neowashingtonia robusta, Washingtonia filifera var. robusta
Common name: Desert fan palm, California fan palm, California palm, American cotton palm, Arizona fan palm
Native to: Western United States
This is a much sturdier version of Washingtonia robusta, with a much thicker trunk. Growing to 15–20 m tall by 3–6 m broad, it is an evergreen palm with a tree-like growth habit. It has a sturdy, columnar trunk and waxy, fan-shaped (palmate) leaves.
Native / exotic: Exotic
Aspect: Full sun
Flowers: Inflorescence of small white flowers on bracts
Foliage: Evergreen, costapalmate, induplicate, split about half the blade length into numerous segments with stiff tips and threads (marginal fibers) hanging between segments. Many bright green leaves form a full crown.
Growth habit: Upright, tapered stem, roughly twice as wide at the base than the crown, and bright green leaves forming a dense crown.
Hardiness: Hardy but not drought resistant
Height: Up to 20 metres
Spread: Up to 3 - 6 metres
Soil requirements: Prefers well-drained soils.
Uses: Large structural planting in areas with a lot of space and impressive accent features in large space.