Palms and tropical plants have fibrous roots; like turf grass, they thrive with frequent water and can survive droughts. Plant palms in soil that drains water well. Create a nice mound around the root zone. Use the extra soil dug out when planting to create this watering well. Then, flood to saturate the root zone.
Irrigation methods, amount, and how frequent to water are outlined below.
What are the methods to water a Palm tree?
Provide enough water to entire root zone width and depth.