I have two apple trees that I bought from Lowes about 3 years ago and since then, I have only had about 4 or 5 flowers bloom on each with no fruit produced. So I bought another apple tree (crab apple) and planted that near the other two hoping that it would help with the cross pollination. No luck. I can't remember what type of apple tree I purchased which probably doesn't help. Any ideas to help these trees take off? Oh, I did get two apple attempts but they only made to be the size of ping pong balls and promptly fell off the tree around mid July. Any ideas would be greatly appreciated.