I got a small tree that was sopposed to be a vanilla bean tree, but yesterday someone told me that it is a Monkey Pod tree, and that it is not only very huge, but also that the roots grow out and could dig up my concrete house fondation, as well as destroy my septic tank... I am wondering if anyone has any info about that. It has grown to be very large in just two years without dirt on the lava rock in my yard. I was thinking I would keep it trimmed, but not if the roots will start to destroy my small lot home & septic system. Any info would be appreciated!