A word of caution do not drown your trees with 60 days of water. At least not for the first couple of years. I planted some sawtooth oaks in a flood plain and they were doing OK the first year. Last year we had some one-hundred year floods and they died within a month of being soaked with water. I almost cried!! I lost about 50 trees; it's a good thing that the CREP paid for them.