PROBLEM TO BE SOLVED: To provide a technique relating to a greening device excellent in economical efficiency as well.SOLUTION: The greening device has a polyhedral greening device main body part to be filled with a vegetation base for plant growth, and an extending part that is provided on one side of the greening device main body part and extends upward from the top end of the greening device main body part.SELECTED DRAWING: Figure 1【課題】経済性にも優れた緑化装置に関する技術を提供する。【解決手段】植物を生育する植生基盤が充填される多面体の緑化装置本体部と、前記緑化装置本体部の一面側に設けられ、当該緑化装置本体部の上端よりも上方に延出する延出部と、を備える。【選択図】図1