Tribest Sproutman SM-350 Wheatgrass Grower,Tribest,SM-350" /> Grows with or without soil Grows trays in just 10 days Expandable to 10 trays Utilizes room temperature and lighting Includes 3 each greenhouse covers, germinating lids, growing trays, seed sheets, shelf baskets, plus spray bottle and 1-pound organic wheatgrass seed