Responding to an earlier thread.
It's actually called a Yellow Flamboyant tree, or African Wattle. -
http://www.usna.usda.gov/Hardzone/ushzmap.html http://hort.ufl.edu/trees/DELREGA.pdf Hope these sites help!
Not required, per se, but it usually seems to help mine when blossoming...the blossoms come in fuller, and seem to be brighter. That's just MY...
The pink/purple flowers (2 left-hand pics) are bouganvillas. The trees could be jacarandas...
Royals get VERY big. They can be as tall as 40-60 feet and get almost as big around. 40 feet from your house should be fine, though.
It's pretty rare for a Royal Poinciana to get bugs. Try planting it in the ground with fresh dirt and mushroom compost.
They grow well in zones 10 and 11. Anything lower than that, you're risking it. They also need a dry spell. Here in Florida, our winters are...
It also might help for you to remove anything from around the base of the tree. Plenty of sun and a dry period would help.