Young jacaranda trees grow competing trunks, which should be trimmed back to maintain one central trunk. To develop stronger branches, the canopy should be thinned, removing branches that grow at less than a 60-degree angle to the trunk. Any branches that cross each other should be removed, as well as suckers and small shoots that grow vertically.
Jacaranda trees can grow very large, with heights up to 40 feet. They have a wide, umbrella-shaped canopy. Despite their size, jacaranda branches are weak, needing regular pruning to keep them from breaking and falling. The best time to complete pruning is in the winter when the tree is dormant. Once the tree has matured, regular pruning is no longer necessary.
Jacarandas grow in U.S. Department of Agriculture zones nine through 11. They are very tolerant plants, doing well in both urban and rural landscapes. The jacaranda blooms with bright purple flowers for eight weeks in the spring. These blooms maintain their vibrant display as ground cover for several weeks after they drop. They prefer full sun, though small trees can tolerate light shade. The jacaranda likes well-drained soil and can thrive in sandy locations. Frequent watering of young plants helps establish the root system during dry periods.