A watering device for potted plants with a water storage device and a water transporting line having a fiber strand which operates by capillary action includes a storage tank, a lid arrangement, a duct and a retaining device. The storage tank opens toward the top. The lid arrangement closes the storage tank in a removable manner. The duct for the water transporting line is formed on the water storage device. The retaining device protrudes downward into the storage tank in the assembled state and guides a section of the fiber strand in a bottom area of the storage tank. A fixing element for fixing the water transporting line in a tension-proof manner is provided on the lid arrangement. The fixing element is arranged on a side of the retaining device which faces away from the duct and is designed for fixing the fiber strand.
