I planted multiple varities of mango trees two years ago all from three gallon pots. These trees have not grown at all my question is why. Ive fertilized them with various brands from home depot they get sun most of the day. What seems to happen is about once a year they try to push some new growth but the leaves are very small and the flush is only 1 or two inches long. 1 probelm could be the rains this year my backyard where they are is prone to standing water in heavy rains the past few months all record highs have made my yard a swamp about half the summer thus far but the trees were still not doing anything prior to the heavy rains. Im just seeking advise on what to do to get these trees going. Mango trees in the front yard grow just fine.