How to Plant a Privacy Hedge

Fill each dam with water, wait for it to be absorbed, then fill again. When the water soaks in the second time, rake away the dam and add a 2- to 3-inch layer of mulch. Keep it away from the trunks to prevent rot. In the first growing season, water once a week, unless it rains. After that, water if there's no rain for two weeks if you have sandy soil, four weeks if your soil is clayey.