How to Take Care of Mexican Mango

Water the mango tree weekly, beginning in February in dry or desert regions, and in April near the coast. Measure the diameter of the tree's trunk, and apply 10 gallons of water for every inch of trunk. Continue to water the tree until the rainy season begins.

Rake 4 inches of mulch over the soil, pulling it back 4 inches from the tree's trunk. Mulch helps maintain a consistent level of moisture by slowing water evaporation from the soil.

Fertilize with 1 pound of 5-8-10 fertilizer three times during the first growing season. Water the tree before sprinkling the fertilizer over the soil, then water thoroughly afterward to avoid burning the tree's roots. In the second year, use 2 pounds of fertilizer at each application. Continue increasing the amount of fertilizer by 1 pound every year.

Prune the young tree to maintain the desired shape and size, removing crossing or crowded branches and water sprouts as needed. When the mango begins blooming and developing fruit, prune the tree after the harvest. Remove root suckers and branches below the tree's graft as soon as they appear.

Monitor the mango for signs of pests such as mites, scale and thrips. Control pests by spraying the tree weekly with a strong stream of water. Unless the tree has a severe infestation, pesticides are not necessary in the home garden.