PROBLEM TO BE SOLVED: To provide a passive type water supply planter keeping the humidity of soil at a fixed ratio by a very small amount of water supply, increasing the survival rate of plants, allowing to continue to cultivate plants without the need of watering in a travel period, and preventing water of watering from dripping.SOLUTION: This passive type water supply planter includes a planter unit 1 which includes an inner layer planter 10 including a recessed holding area 13, an outer layer planter 11 supporting the inner layer planter 10, and a space area 12 put between the outer layer planter 11 and the inner layer planter 10, and a submerged member 2. The holding area 13 is formed by being surrounded by a bottom surface 101 and a side surface 102 of the inner layer planter 10, a submerged hole 141 is formed on the holding area 13, and the submerged hole 141 and the space area 12 are communicated to each other. The submerged member 2 is made of a plurality of particles 20 and 20, a minute flow path 21 is formed between the particles 20 and 20, and the submerged member 2 is installed on a water current path from the holding area 13 to the submerged hole 141.COPYRIGHT: (C)2012,JPO&INPIT【課題】微量の給水により土壌内を一定割合の湿度に保ち、植物の生存率を高め、旅行期間中も水遣りの必要なく植物の栽培を継続することができると共に、水遣りの水が滴り落ちない、受動式給水プランターを提供すること。【解決手段】凹陥状の収容区域13を備えた内層プランター10、内層プランター10を支持する外層プランター11、及び外層プランター11と内層プランター10で挟まれた空間区域12を含むプランターユニット1と、浸水部材2とから成り、収容区域13が内層プランター10の底面101及び側面102に囲まれて形成され、収容区域13に浸水孔141が形成され、浸水孔141と空間区域12が相互に連通され、浸水部材2が複数の粒子20,20’から構成され、粒子20,20’間に微小流路21が形成され、浸水部材2が収容区域13から浸水孔141までの水流経路上に設置される。【選択図】図7
