The Botanium Self Watering Hydroponic Planter is a minimalistically designed self-watering planter that enables you to grow herbs and vegetables using soilless growing technology. Plant a seed, plug it in and you can leave it alone for weeks as it takes care of the plant for you. No soil The Botanium Hydroponics Self Watering Planter does not use Soil. Instead your plants will grow in a special Growing Media (included). This has many benefits. No Mess. No insects or bugs that can infest your plant, and best of all it is reusable. Built-in water tank/reservoir The bottom section of the Botanium holds your water and Nutrient Solution. When you plug in the provided USB cable, water will be pumped up from this tank/reservoir, and feed your seeds/plant. The water then filters through the Growing Media, some is used by your plant, and the rest will return to the tank. This means that the Botanium can go on watering for weeks at a time before needing a refill.