Maple trees only blooming leaves at bottom of tree
We bought 4 maple trees in May of last year. These trees are 10 feet tall and were transplanted right away to our yard. This year they are ONLY leafing on the bottom trunk of the tree. The tops of the trees are bare. All of the other trees around us are leafing without a problem but we are only getting leaves on the bottom of the trees and they are coming in burgundy.
We are not sure what is wrong or what to do. Any answers will be appreciated.