As has been mentioned, the tree grows fine. Har says getting fruit set is not a problem if you hand pollinate. Apparently Cherimoya fruits stop developing at higher temps, so they drop before they can ripen. I have a hunch that with the right cultural care they can be fruited in Florida and will be testing some of my theories eventually. If you are not in the mood to experiment, I wouldn't try it for now. There is a fruiting pink Ilamma tree in Sebring by Dinner Lake, maybe that is something for you to try. It is also a high quality rare fruit that has a better chance of fruiting here. The cold did not seem to be a major factor for the Ilamma, either, so that is a plus.