A long-term no-watering flowerpot includes a main body having a lower portion formed as a water groove. At least a water exit is bored in a circumferential wall of the main body above the water groove. The water groove can store extra water. By means of capillarity, water in the water groove can be sucked up to moisturize the soil in the flowerpot for the plant to absorb. Thus watering cycle can be prolonged to save manpower and water resource.
