The Best Raised Bed Garden Should I Cover The Bottom 2023. Web so, if the raised bed is sitting on the ground with ideal conditions, you do not need to place anything in the bottom of the raised bed. This is a special kind of fiber that is made of mostly recycled material, linen, or polyester.
Let's look at different options for things you can put at the bottom of your raised bed. Cardboard, branches and logs, leaves, manure, pine needles, and wood chips as well as coffee grounds, grass clippings, kitchen scraps, and old potting soil. For raised garden beds to be effective, you have to put a barrier underneath.
