PROBLEM TO BE SOLVED: To provide a water-storing type planting container as a greening device enabling planting of trees in addition to flowering plants planted on a folded-plate roof or a slate roof.SOLUTION: The water-storing type planting container comprises a thin container provided with a cylinder which is made of hard-to-corrosive material (resin material such as styrofoam or plastic), the top part of which is open, and the planar shape of which is square and into the center part of which a planting pot is housed: wherein an inside box allowing storage of water such as rainwater is housed in the container, a tree planted in the planting pot the bottom part of which is formed in a lattice shape and in the vicinity of the top part of which water-absorbing ropes enabling automatic water supply are set, is placed into the cylinder and the top surface part of the planting pot and the top surface part of the thin container are covered with light shielding net to prevent moisture evaporation so as to enable long-term water storage.COPYRIGHT: (C)2012,JPO&INPIT【課題】折板屋根やスレート屋根上に植栽された草本植物に加え樹木植栽を可能とする緑化装置の提供。【解決手段】腐食しにくい材質(発泡スチロール、プラスチック等の樹脂材)で上部を開放した平面形状が四角形で中央部分に植栽鉢が収納される筒が形成された薄型容器とし、容器内に雨水等が貯水可能な内箱を収納し、筒内には底部が格子状で上部付近には自動給水が可能な吸水ロープがセットされた植栽鉢に植栽された樹木を収納し、植栽鉢上面部分と薄型容器上面部を遮光ネットで覆って水分蒸発を抑制し、長期貯水を可能とした貯水型植栽容器とする。【選択図】図5