It is PPK. It was a 7gal size that probably was about time to jump up to a 15gal. I backfilled it with only the ground up coral rock bits that the hole was dug with because I know the mangos need good draining soil. It was done the same way as all my other mango trees, which have t had any issues at all. The leaves are very soft and moist if that helps any.
Also, mango trees grow like weeds down here in Miami. It's almost impossible to kill one.....Almost