Awasome Minimum Depth For Raised Garden Bed Ideas. However, there are a few exceptions. A depth of about 12 to 18 inches is appropriate for root vegetables like carrots and potatoes.
This rule of thumb will be accurate regardless of whether you want an elevated bed or planter box. Web ideal raised bed depth based on the plants you want to grow. Because of the excellent drainage properties of raised beds, it is possible to grow an abundance of vegetables in a limited amount of space.
