Cherry Oh Baby

In our back garden we have 4 self propagating mini fruit trees.
They don't grow overly tall, and as a result they grow in pots. Next year we will have to repot them into larger ones. They sit on stands with wheels on, so the can moved if needed.
So far we have been unsuccessful in getting any fruit from them. We were hopeful thus year, but all the blossoms on the apple tree have vanished, as have the plums.
We have some pears growing, and hopefully they will get sizeable, and the cherry tree has quite a few berries on them at the moment.
Fingers crossed.