PROBLEM TO BE SOLVED: To provide a plant growth structure, soil for plant growth, or a method for growing a plant, which can reduce the supply quantity of moisture or a fertilizer, and supplies air to plant roots.SOLUTION: A plant growth structure includes a water repellent sand layer having a recessed part and formed with water repellent sand which is a particle whose surface is water-repelling coated, a water retaining layer located in the recessed part of the water repellent sand, and a plant located in the water retaining layer and extending its roots toward the water repellent sand layer. Moreover, soil for plant growth for growing a plant to locate the plant in the water retaining layer includes a water repellent sand layer having a recessed part and formed with water repellent sand which is a particle whose surface is water-repelling coated, and a water retaining layer located in the recessed part of the water repellent sand.COPYRIGHT: (C)2014,JPO&INPIT【課題】水分又は肥料の供給量を低減でき、かつ、植物の根への空気供給する植物育成構造、植物育成用土壌または植物育成方法を提供する。【解決手段】植物育成構造は、凹部を有し、表面を撥水コーティングした粒子である撥水砂で形成されている撥水砂層と、前記撥水砂の凹部に位置している保水層と、前記保水層に位置し、かつ、前記撥水砂層に向かって根が伸長する植物とを備える。また、保水層に植物を位置することで植物を育成する植物育成用土壌であって、凹部を有し、表面を撥水コーティングした粒子である撥水砂で形成されている撥水砂層と、前記撥水砂の凹部に位置している保水層とを備える。【選択図】図1A
