PROBLEM TO BE SOLVED: To provide a cultivation container enabling a cylindrical container having a thin mouth part such as a PET bottle to be stably arranged, and facilitating the replenishment of water, and to provide a plant-cultivating device.SOLUTION: The cultivation container 10 is obtained by attaching, in a state of being turned upside down, water feeders 20 having cylindrical bottles 21 having bottoms and capable of storing the water W, and water-feeding valves 22 installed in the upper terminals of the bottles and capable of automatically feeding the water so as to keep the level of the water stored in the water-storing part 13 at a prescribed height. The cultivation container also has a supporting part 11 for detachably supporting a plurality of the water feeders by receiving them, a connecting part 12 having waterways 12a communicating with the supporting part thereof, for introducing the water fed from the water feeders, and formed therein, and a water-storing part 13 for storing the water through the waterways, and the supporting part, the connecting part and the water-storing part are formed integrally.【課題】ペットボトルなどの口部が細い筒状の容器を給水装置を安定して配置できると共に、水の補給を容易にする栽培装置および植物栽培装置を提供する。【解決手段】水Ｗを蓄えることのできる有底筒状のボトル２１と、そのボトルの上端に設けられると共に貯水部１３に貯水される水面を所定の高さに維持して自動的に給水できる給水弁２２とを備えた給水装置２０を、上下に逆にして取り付けて用いる栽培容器１０であって、複数の給水装置をそれぞれ着脱自在に受け入れて支持する支持部１１と、それらの支持部に連通し、前記給水装置から供給される水を導く水路１２ａが形成された連結部１２と、その水路を介して水が貯水される貯水部１３とを備えており、前記支持部、連結部および貯水部が一体に成形されている栽培容器。【選択図】図１
