 It helps keep the weeds out of there. So you're not going to have weeds sprouting out. So it's just a really good, keeps more moisture in the soil. So it's very important to do. People don't think about doing that in the summertime. It's the most important. So shredded cedar bark. Here's a three-inch layer. Magical. Cedar keeps bugs away. It's got a repelling action. It keeps the sun off the soil so the sun doesn't.