Arborvitae, standing water, and raised bed
I'm considering planting Arborvitae in an area that has a drainage problem. It seems to only be a problem in the late fall and winter. There will be about 1-2" of standing water for a day or two. This happened about three times last year. Im trying to determine if I build a raised bed in this area and put the arbs on top of it will they be safe from the water. If this idea can work then how high high does the bed need to be, or to put it a more precise way, how much above the potential water line does the bottom of the root ball need to be ?