Q.Additional Question To Tabebuia Tree
Thank you for such a prompt response. This makes sense what you are saying. There is a ground cover around the tree and I thought the fertilizer was not getting through it. So, I added more than recommended. Follow up question however is: will my tree die, If that is the problem? Can I do anything to help it?

Certified GKH Gardening Expert
You can flush it with extra water. There isn't much else, besides a citric acid flush that will help, but if you don't have much experience with this I wouldn't recommend attempting it. In this case, the best thing will be water. Lots of it. Dilution is the solution to the pollution.
As long as your soil is well draining, then everything will be ok. Just be sure to follow all instructions on the package to avoid this in the future.
This article will help with overfertilization:
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/fertilizer-burn-in-gardens.htm
Make sure to test your soil for deficiencies before adding nutrients. This will be a good way to know, for sure, whether it needs it or not.
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-soil.htm