The present invention relates to a water tank for a flowerpot, and more specifically, to a water tank for a flowerpot which is capable of providing excellent compatibility by enabling the water tank to be used in a state that the water tank is inserted into the flowerpot undeterred by size of the flowerpot, and which is capable of reducing manufacturing cost and improving productivity by enabling the water tank to be used in a state that a water level is detached from or attached to the water tank. That is, a water tank (1) for a flowerpot according to the present invention includes: a water container (2) a lid (3) which is assembled with the water container (2) in a state that a guiding protrusion of the water container (2) corresponds with a guiding groove of the lid to mount an end portion of a water level sensor (6) on a mounting protrusion portion of the water container without separation of the water level sensor (6) a finishing connection pipe (63) having a protrusion portion formed on an inner part thereof to enable the water tank to be operated smoothly without a phenomenon that a buoyant material is caught by the protrusion portion although foreign materials are flown in the finishing connection pipe (63) and a water supplying wick (5) which is installed in the water tank for the flowerpot such that water is capable of being supplied in a state that water and soil are separated from each other, and which is pressurized and fixed by a pressurization piece to firmly fix the water supplying wick (5) without separation of the water supplying wick (5).COPYRIGHT KIPO 2016본 발명은 화분용 수조에 관한 것으로서, 더욱 구체적으로 화분의 크기에 구애받지 않고 화분에 삽입하여 사용할 수 있는 우수한 호환성을 제공할 수 있으며, 수위감지기를 분리 및 결합하여 사용할 수 있으므로 제조단가의 절감과 생산성을 향상시킬 수 있는 화분용 수조에 관한 것이다.즉, 본 발명은 수통의 안내돌기와 덮개의 안내홈을 일치시킨 상태에서 덮개를 결합할 수 있으므로 수위감지기의 단부를 수통의 안착돌출부에 이탈 없이 안착시킬 수 있으며, 마감연결관의 내부에 이물질이 유입되더라도 마감연결관의 내부에 구성된 돌출부에 의해 부력재가 걸리는 현상이 없이 원활하게 작동시킬 수 있고, 상기 화분용 수조에 물공급용 심지를 구성하여 물과 토양을 분리된 상태로 물을 공급할 수 있으며, 물공급용 심지가 가압편에 의해 가압
