The Best What Can Be Used As Filler In Raised Garden Beds References. Feel free to tinker and adjust amounts to customize your mix. This allows for excellent drainage and protects the bottom of the bed.
Web topsoil belongs as part of the soil mixture used in raised beds, but you cannot only use topsoil to fill your new garden bed. Gravel or finely broken rock can be put in the bottom if drainage is a possible problem but under most circumstances it's not need. Web lay the 1st layer.
