I planted five apple trees this year. The last one took me some doing to find, I wanted a prairie magic and the only nursery that had one left had it inside the green house. It bloomed early and had small apples towards the end of May. Before it got planted it spend a few weeks on my porch where the wind knocked it down a few times, which I'm sure it didn't do it any favors. Once planted in the soil the othertrees had an easy time putting up some growth to the point that I decided to let them keep 5~10 apples each. The prairie magic was pretty much stunted; it lost its apples and didn't put any new growth until early July. Then it tried to put flowers again, I took those out. It had a bit more growth and now it is trying to put a few more flowers.
Obviously the tree is rather confused as to how the whole seasons bit works. Is there anything to do other than wait for the winter to sort it out?