The invention relates to a watering device comprising a capillary water transport line. According to the invention, a dimensionally stable ground spike is disposed on one end of the water transport line (WL) far from the water reservoir and on an end near to the soil substrate (ES) associated with a plant which is to be watered, said water transport line (WL) being fixed to said ground spike in a manner such that it is in contact with the soil substrate (ES) in order to transfer water.
