Hi, I just bought a monkey puzzle tree from a private owner that no longer wanted the tree. They have grown it in a pot for quite a few years. It is about 6 feet or so tall. I would like to plant it in the ground but don't know if there are any special instructions or consideratioins I should take before planting it into the ground. It is in a very large plastic pot now. I don't know if I should try to buy a bigger pot or just plant it in the ground. They weather is very hot right now and I don't know if I should transplant it now or wait until fall when it is cooler outside. Any advise would be greatly appreciated. I have always wanted one of these trees and don't want to kill it.