The Jacaranda is a flowering tree, native to the jungles of Brazil. Prized for its ornamental value, the Jacaranda grows well anywhere with a subtropical climate that provides the high heat and periodic drought that the Jacaranda needs to thrive. If its climactic conditions are met, the Jacaranda grows well anywhere. It thrives in any type of well-drained soil, even in nutritionally poor areas. The ample flower and leaf litter from the tree itself provides all the fertilizer the Jacaranda needs to grow. However, an extra dose of fertilizer added between May and July will increase the tree's growth rate and flowering ability.
Dig several fertilizer holes at and beyond the drip line of the tree with a small auger. Make each hole 8 to 12 inches deep, slanted toward the center of the tree. Space the holes 2 to 3 feet apart.
Measure out the appropriate amount of a balanced fertilizer. Follow the manufacturer's instructions for application rates and amount. Take the tree's trunk measurement 2 to 4 feet up from the ground.
Add equal amounts of fertilizer into each one of the holes.
Water the tree to moisten the top 8 inches of the soil. Use a slow-running hose. Never aim lawn sprinklers at landscape trees.