Living on a tropical island allows for interesting fruits. This is one - it is the soursop. We have had a twig growing next to the driveway. It was getting bigger and looked like a weed to us. Amazingly, this spring it started producing soursops. They are hard to find on the tree and we have yet to see a flower before the fruit appears. This is a young fruit and needs more time to ripen. Once it is ripe, you can eat it right away. It is custardy with many seeds inside.