Just as an update, the 5-6ft abiu I put in the ground is doing fantastic. I placed it in the ground inside a 45gal pot using premium potting mix. It is planted in Full sun and gets a healthy amount of water. It has been a few months an looks better than any other Abiu I've ever planted. The only issue I have is that some sort of bug, I believe it to be beetles at night time, are chewing on the leaves pretty good. The same exact thing is happening to all of my sapote trees (black sapote, canistel, mamey, etc.) accept my sapodillias. It's becoming a real PITA and spraying hasn't helped.