If your planting a quality ladino clover you will need to make sure that the product is not under water more than 7 days. If there is a lot of water leeching you will need to continully check the soil ph. At 7 days under water you will start to kill off the root. I would think that barking the tree with a chain saw or cutting and piling the trees to make habitat for critters would work... Kinda hard not having a picture.