Tubers and Root Vegetables– Tubers need thick soil profiles, depths, and perhaps, more expansive spaces. Some can be vined, demanding sprawling areas, and therefore require a proper judgment. Pots and containers with profound depths are usually the best for plants like potatoes and root vegetables, including carrots, onions, beet, turnips, and rutabaga. Other root vegetables that grow best in terrace gardens include radish and ginger celery roots.