COLE & MASON Self-Watering Indoor Herb Garden Planter - Pot Self-watering potted herb keeper requires up to 40% less watering Hydro-pad allows herbs to draw water as needed, includes 1 year supply Carbon steel container is covered for less evaporation Suitable for 1 pot (round or square) up to 3.5 inches diameter Pour spout allows for easily filling the water reservoir which feeds the plant