For 2 to 3 weeks after you've planted your palm, keep it well watered. Wrapping a soaker hose around the root area will keep it moist while saving water. Add enough water to ensure moisture is penetrating a foot and a half of the soil. After the plant becomes established, you can cut back soak-watering your palm to about 15 minutes twice a month. Cut back on watering during the winter months.
Palms have nutritional needs that other trees may not. They depend on ample supplies of magnesium, iron and manganese to keep fronds from yellowing or curling.