This cares are necessary for a good thriving from your fan palms. The established and new plants will be in better conditions if they grow in well-draining soil and with watered through deep. You have to make slow watering with bubblers, too.
A top side watering system can be helpful to supplement the hole water distribution.You should apply it with a hose and slow flow watered laps. If temperature reach above 100, you have to water deeply and more often. Also, you can check the moisture levels of your soil using a soil prove or a shovel. The purpose of this task is testing the moisture of the soil 6 inches below from the topsoil point.