At the beginning of the spring, I noticed that my two tiny apple trees had a bumper crop of apples. There were easily 3 fruits per cluster, which was way more than the tiny trees could support. I was going to have to thin the fruit, which helps the remaining fruit grow larger, and also protects the young tree from broken branches.
Before I thinned the fruit, the tree did it for me. There are lots of tiny apples under both trees, and now there are no more than 2 fruits per cluster. Nature is amazing.