The variety of tropical fruit that can be grown in a sub-tropical environment is amazing. I have in a relatively small space over a hundred different types of fruit trees as well as fruiting bush's. Years ago a friend gave me a seedling. It grew, but never flowered and this year I had decided to remove it to plant something else. Well, this year it flowered and fruited. Below is a photo of it, it is in the pom family same as the apple. It taste kind of like an apple and a pear.

Chinese Jujube fruit