I planted a cherry tree 4 years ago and never bear fruit. I bought this tree from Lowe's and it has 4 varities of cherry in one tree. Im desperate year after year expecting some fruit but it never did. It grows new leaves and blossoms but everything turns brown after a while. This spring it grows leaves and blossoms again but never give me any fruit. I water it regularly and put some fertilizer in it but still the leaves just dried up. Could this be some kind of cherry disease that attacks the roots. I dont see any bugs, ants or insects on the leaves or branches. Pls help me. Randy