Take your kitchen windowsill to the next level with a hydroponic planter for growing fresh vegetables and herbs. Instead of soil, hydroponic gardens use nutrient-rich solutions in a water solvent, making them a smart choice for indoor plantings. The hexagon-tiled garden allows the homeowners to grow leafy greens, such as bibb lettuce and red-leaf lettuce, and herbs, like basil, mint and tarragon, right in their kitchen.