Hydro Greenhouse 2 You needn't be a clean freak to love this mini hydroponic greenhouse, which uses no dirt Grow flowers, veggies or herbs in a transparent incubator from seeds that you provide It's low maintenance, with automatic feeding system and a year's worth of nutrient mix No worries about soil-borne diseases, insects, or dirty fingernails since it uses no soil Great for teaching kids about hydroponics and its role in food production