PURPOSE: To provide an automatic water feed flowerpot capable of optimizing root environment of a plant by uniformly feeding sufficient water to gravel sand, soil, etc., in the flowerpot.

CONSTITUTION: A water feed tank 12 is contained in the bottom of a flowerpot 10 having a double structure and an inner flowerpot 11 is inserted into the upper part of the water feed tank. Water is automatically fed from a water feed tank 12 into the flowerpot part 14 with an air pump 17 at a prescribed interval. The fed water is then fed to the position of a water level sensor 20 to subsequently release pressurized air in the water feed tank part 12 from gaps between a body (not shown) and valves (not shown) in the air pump 17. Thereby, the water in the flowerpot 14 in small portions is returned to the water feed tank 12.