You need to travel to the southern reaches of Florida to see thriving coconut palms. Reserved for the warmest climates, coconut palms do not tolerate cold temperatures at all. They grow best with days in the 80s and nights in the 60s or 70s. If you live far enough south in Florida, it is fairly easy to grow coconut palms. Like any other tree, coconut palms require an ample amount of water and regular fertilizing to achieve a nice looking specimen.
Plant your coconut palm in well-drained soil in an area that receives full sunlight. The coconut palm should be planted at the same depth that it was previously kept at.
Water the tree immediately after planting and water two to three times per week for the entire first growing season. Apply one inch of water over the entire root zone, which can extend out from the trunk as far as the canopy.
Apply wood mulch at a depth of three to four inches from the trunk to the edge of the coconut palm canopy.
Fertilize every two to three months with a palm fertilizer that has a ratio similar to 8:4:12 (nitrogen, phosphorus, potassium). Apply the fertilizer when the ground is moist over the entire root zone of the palm. Use 1.5 lbs of fertilizer per 100 square feet of canopy space. Ensure the fertilizer is loaded with micronutrients (iron sulfate, manganese sulfate, copper sulfate or zinc sulfate).
Watch out for palm pests such as palm aphid, scale, mealy bugs, spider mites, palm weevils and caterpillars. Pests usually do not require control unless their populations become excessive. Contact your local County Agent for control recommendations.