Lifetime&#39;s Raised Garden Bed gives you the perfect garden setup in less than one hour. It is constructed of UV-protected high-density polyethylene (HDPE) with a simulated wood design. It is low-maintenance, weather resistant, and will not rot, crack, or peel. The walls are 9 inches high, and two beds can be stacked together to create 18 inch walls to accommodate deep rooted plants. With its easy do-it-yourself assembly and low-maintenance features, gardening has never been this easy.  (PRNewsFoto/Lifetime Products, Inc.)