My Jacaranda tree has very little leaves this year and don’t know why?

Question

The tree is about seven years old

Answer 1

The change in your tree's leaves could be due to several different issues. Whether it's in the roots, a pruning issue or a pest of some kind, here's an article that will help:

https://www.gardeningknowhow.com/ornamental/trees/jacaranda/jacaranda-tree-problems.htm

The following link is to a series of articles about Jacaranda trees.
https://www.gardeningknowhow.com/ornamental/trees/jacaranda