Question
When we first toured our new home in San Diego last July, the 20ft jacaranda was just finishing blooming and seemed healthy.  This June the blooms were very sparse.  When I looked at it closely, I noticed almost all of last years growth had died and new leafs were budding about a 6-12" back down the branches with lots of new growth/suckers sprouting from the trunk.  

We didn't get a frost that I can recall, but we had some record high temps in Feb - in the 90's.  We've also been moving plants in the garden underneath it this spring.  Our next-door neighbors tree is not fairing much better, but the tree across the street (down a hill and out of the wind) is fine.   Any thoughts on what might have caused it so we can prevent it from happening again?  What we can do to help it recover?  Thanks!

Answer
Hi Tom..not familiar with CA weather but 90 degrees could suck alot of water out of the ground and cause die back if you are not watering enough.  Also if you are in a windy area, frost could have hurt just the tips during the winter.  So it could go either way...both could cause the same look to occur