To provide a fix-planting method, a greening method and a greening system capable of preventing falling sidelong due to weather for even a tree for which only almost one year or shorter period has passed since fix-planting thereof.SOLUTION: The invention is configured so that, on a seedling raising box 10 on which a bottom plate 12 comprising a plurality of pores 14, 14 is detachably attached to a surrounding wall 11, a seedling Bc for fix-planting is cultivated until at least, a plurality of roots R, R forming the seedling Bc for fix-planting extend from the pores 14, 14 of the bottom plate 12, and the bottom plate 12 and the seedling Bc for fix-planting are taken out from the surrounding wall 11 of the seedling raising box 10. Meanwhile, on an artificial ground G, a water proof layer 1 and a net member 5 are laminated in this order, the bottom plate 12 and seedling Bc for fix-planting are mounted on the net member 5, and the mounted bottom plate 12 is engaged to the net member 5.SELECTED DRAWING: Figure 1【課題】 定植してから１年程度以下の樹木であっても、風雨による横倒を防止し得る定植方法、緑化方法、及び緑化システムを提供する。【解決手段】 複数の細孔１４，１４，…が開設された底板１２を周囲壁１１に着脱可能に設けてなる育苗箱１０にて定植用苗Ｂｃを少なくとも、定植用苗Ｂｃを構成する複数の根Ｒ，Ｒ，…が底板１２の細孔１４，１４，…から延出するまで栽培し、底板１２及び定植用苗Ｂｃを育苗箱１０の周囲壁１１から取り出す。一方、人工地盤Ｇ上に防水層１及びネット部材５をこの順に積層しておき、ネット部材５上に底板１２及び定植用苗Ｂｃを載置し、載置した底板１２をネット部材５に係止する。【選択図】 図１
