Bare root beech hedging

I am presently planting a bare root hedge and had sprayed the grass with Round-up and turned over the sod after it was burned away. Problem now is the clay is very wet and heavy after the rain. Will the beech survive in this clay with the level of saturation?I have drained the back of the hedging area but soil very sticky. I have 150 plants down and another 200 to go. I am storing the remainder in heavy clay also.Am i wise?