Awasome Minimum Dimensions Of A Raised Garden Bed References. Web raised garden beds broadcast fri 14 may 2021 at 9:30am friday 14 may 2021 at 9:30am fri 14 may 2021 at 9:30am space to play or pause, m to mute, left and right arrows to seek, up and down arrows. For best results, there should be another 12″ or more of good soil below the bed.

Any wider, and you’ll find it difficult to reach the middle of the bed without climbing inside and compacting the soil. Raised garden bed layers less than 8 inches tall will stunt plant growth. There are three general parameters for raised bed size: