To automatically feed water to a gardening pot by storing a portable gardening pot in which a recess is formed in its periphery as a groove for a water conduit in an integrated gardening pot provided with a water storage tank, inserting a water suction pipe of an automatic water feed pump making use of the recess, and immersing its lower end in the water storage tank.

A portable gardening pot 10 having a hand piece 9 is stored in a general gardening pot having a water storage tank in its bottom part in an attachable/ detachable manner so as to be brought into close contact with the general gardening pot, and a groove-shaped recess 11 along the axial direction which is provided all around the portable gardening pot 10 is used as a groove for a water conduit. A water suction port 1 at the lower end of a water suction pipe 2 inserted through the recess 11 is immersed in the stored water in the water storage tank of the general gardening pot. The other end of the water suction pipe 2 is connected to a pump 4 including the cloth 3 such as cutton fiber, and the water in the water storage tank is automatically fed to the plant in the gardening pot through a nozzle 5 through the water suction effect making use of the capillary phenomenon of the pump 4.