The Simply Solar Greenhouses is a gothic-arch-shaped, one-piece- molded fiberglass structure that claims to allow one to grow vegetables, fruits, and flowers year-round on three levels: the ground, middle shelves, and hanging baskets. The unit is wind-resistant, permits a high transference of UV-blocked sunlight, has been engineered for proper venting, and usually does not require supplemental heat during the evening or days in winter (if temperatures are above 30 degrees). Installation involves setting the structure in a previously dug footing trench then burying its foundation lip and covering the ground with 4-6 inches of mulch, sawdust, straw, or wood chips. Available in three sizes: 7'x7'x8', 8'x8'x15', and 8'x8'x30'.