I currently live in tropical country Philippines and I would like to plant or graft the most leafiest tree serving 2 purpose; first to have a better shade, like I said we live in a tropical climate and leafy trees provide a cool and shady place. secondly, tree leaves are useful for composting so I'm searching for the best one. It's a plus if it can grow the least possible time.
Consider growing following:-
Broad shape, Grows faster(approx 9 mtr/year), durability in weather and against insects.
Grows 3-5 mtr/year, fixes nitrogen in the soil, susceptible to termites.