It may not ever bear fruit, Lonnie (long time, by the way)... problem is, almost all apples are the product of hybrid trees. The fruit of hybrids rarely follows true, meaning, the tree that is growing may not even be similar to the tree from which the apple orginally came. If, however, the seed was obtained from a common stock, then the apple tree should produce a few blossoms this year, but unlikely be followed by fruit. You can expect more blossoms next spring and even a few apples. However, it'll be about three seasons before one would see much in the way of produce. Be sure, (since the tree is tub planted) not to take it inside for the winter. It must have cold temperatures to thrive in the spring. Best of luck!