This invention relates to a kind of expandable conduit for planting pot, which includes a lower pipe fitting and an upper pipe fitting. The lower pipe fitting has a fixed pipe body, a stop part and a connecting part. The stop part and the connecting part are respectively located on both sides of the fixed pipe body. The upper pipe fitting has a movable pipe body, a positioning part and a conical part. The positioning part and the conical part are respectively located on both sides of the movable pipe body, and the movable pipe body can be in the first position and the second position Between the two positions, the upper and lower positions are movably arranged on the fixed pipe body, and the positioning part is against the stop part.Therefore, when the telescopic pipe is installed in the planting basin, the user can adjust the height of the pipe according to the demand, so as to effectively receive and guide the flowing water.本創作有關於一種用於植栽盆的伸縮導管,包含有下管件及上管件,下管件具有固定管身、檔止部及連接部,檔止部與連接部分別位於固定管身之兩側,上管件具有可動管身、定位部及錐狀部,定位部與錐狀部分別位於可動管身之兩側,可動管身能在第一位置與第二位置之間上下位移地設置於固定管身,且定位部抵止於檔止部。藉此,當本創作之伸縮管裝設於植栽盆時,使用者可因應需求而調整導管之高度,以有效地承接及導引流水。