If it has yielded before then may be now it does not get enough sun.@grouie I love the photos of your star fruit tree and the fruits, of course. We have a star fruit tree that is in a big rubber pot. Last year it gave us fruits, about 10 pieces in 2 harvests. I wonder why it stops bearing fruit although it always have flowers. Is there a problem with fertilization? Insects have a heyday with those flowers so I guess that's not the problem. With fertilizers, it never goes hungry. Do you have any idea why the flowers don't turn into fruits?