Common Name: Cotton  Scientific Name: washingtonia - filifera  Origin:California, Mexico, Arizona  Height: 15 m  Lowest Surv Temp: -10.9  Sun: Yes  Shade: No  Indoors: No  Outdoors: Yes  Description: Also known as Desert Fan or Washington Palm. A large palm for the home garden so a choice of location is important. Grows best in full sun in a rich organic soil that is free draining. Also common in Perth area.