PROBLEM TO BE SOLVED: To easily prime water to a water supply pipe at the time of use by making the intake pipe and the water supply pipe independent. SOLUTION: The watering device 1 automatically supplies water to a pot saucer 3 laid under a plant pot 2, and has an opening 11 at the upper part so that water can be stored inside and pressed from the outside. The deformable water container 10, the lid 20 that closes the opening and is provided with the water supply hole 23 and the intake hole 24, and the base end 33 that is connected to the water supply hole are the water container. While being immersed in the water inside, the tip 34 is connected to the water supply pipe 30 provided at the position of the lower water level L of the pot saucer and the intake hole, and the tip 41 is above the pot saucer. It includes an intake pipe 40 provided at the position of the water level U. [Selection diagram] Fig. 1【課題】吸気管と給水管とを独立させて、使用当初の給水管への呼び水を簡単に行えるようにする。【解決手段】植木鉢２の下に敷かれる鉢受皿３に自動的に水を給水する水やり装置１であって、上部に開口部１１を備え内部に水を貯留可能とするとともに外側から押圧することで変形可能な水用容器１０と、前記開口部を塞ぐとともに、給水用穴２３及び吸気用穴２４が設けられる蓋２０と、前記給水用穴に接続されその基端３３が前記水用容器内の水に漬かっているとともに、その先端３４が前記鉢受皿の下側水位Ｌの位置に設けられる給水管３０と、前記吸気用穴に接続されるとともに、その先端４１が前記鉢受皿の上側水位Ｕの位置に設けられる吸気管４０と、を備える。【選択図】図１
