PROBLEM TO BE SOLVED: To provide a moisture retainer around roots of a container-cultivated plant in which: layered gaps are formed by putting together a plurality of members in order to easily retain moisture around the roots of the container-cultivated plant and save time and labor for watering moisture is pooled within the layers and air and water are made to be supplied from the layers to roots and, in addition, by making the members have a function to support the roots, growth of a cultivated plant is facilitated.SOLUTION: One or more pieces of aggregate member 2 constituted by putting together a plurality of members 1, 1.., each having a board-like double-sided structure, in a manner of making required surfaces face each other and being aligned vertically, are formed, and an appropriate end of the aggregate member 2 is fixed to a pedestal of a proper shape.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2016,JPO&INPIT【課題】容器栽培植物の根周りの湿気をより容易に保持して水やりの手間を減らすために複数個の部材を寄せ並べて層状の隙間を形成し、湿気を層内に貯留して層内から根に空気と水分を補給できるようにし、合わせて当該部材に根の支持機能を持たせることで栽培植物の発育を促すようにした容器栽培植物の根周りの湿気保持装置を提供する。【解決手段】夫々板様に両面構造を成す複数の部材1、1・・を所要の面同士立て寄せ並べて成る集合部材2を一つ以上形成し、当該集合部材2の適当な一端を適宜な形状の台座に固定した。【選択図】図1