Incredible Is Topsoil Good To Add To Raised Garden Beds Ideas. Web raised bed garden soil best, then garden soil, then distant third is topsoil. Topsoil can be added (up to 20% by volume) for beds that are at least 16 inches deep.
If you're buying bags to fill the beds, aim for a mix of 2 parts topsoil with 1 part compost. Web topsoil is a good choice for filling up raised beds, repairing eroded spots, or filling in holes. Cca stands for copper and chrome arsenate.
