A kind of potting water-feed, system is the ontology that is filled with water with floral disc, extend a water supply device in what side, the device is equipped with can spiral grooves corresponding with commercially available beverage PET bottle mouth, it can combine closely with PET bottle, the effect of water supply device is equipped with the air hole of one or several appropriate height and size close to the one end for the ontology that is filled with water, and reaches water supply and control water level.一種盆栽供水器,係以花盤為盛水本體,於側邊延伸出一供水裝置,該裝置設有能與市售之飲料寶特瓶口相對應的螺旋溝槽,能與寶特瓶緊密結合,該供水裝置靠近盛水本體之一端,設有一或數個適當高度及大小之透氣孔,達到供水及控制水位之功效。