+22 How Deep Should A Raised Vegetable Garden Bed Be 2023. If you’re growing produce that has deeper roots than herbs, such as celery or carrots, your raised garden bed should be approximately 12 inches deep. The depth of raised bed and soil goes hand in hand.

This article explains in detail. However, we recommend a height of at least 36 inches. For example, you might have a problem with drainage or plants that need drier topsoil.