It depends on the vegetable. For leafy greens, 12 inches of soil will do. For fruiting vegetables such as tomatoes or squash, or for root vegetables such as carrots and beets, 18 inches is the minimum soil depth recommended. Reply
It depends on the vegetable. For leafy greens, 12 inches of soil will do. For fruiting vegetables such as tomatoes or squash, or for root vegetables such as carrots and beets, 18 inches is the minimum soil depth recommended.