Rolling on caster wheels, this 50-inch brown planter tower can be pushed from a sunny corner of the patio into shelter when the weather turns. Its five container boxes sit 13.5, 21.5, 29.5, 37.5, and 45.5 inches off the ground, so the lower rows stay easy to reach while the top row catches full sun. Each box measures 19.5 by 7.5 by 6.5 inches and is molded from new polypropylene that resists odor and weathering. A removable tray under every box lets you choose between draining water away outdoors or holding moisture indoors. The supporting frame is powder-coated metal in a triangular layout that resists rust and keeps the 20-pound unit from wobbling once loaded. The whole tower needs only 22.5 by 29 inches of floor, which suits narrow balconies and townhouse decks.