PROBLEM TO BE SOLVED: To provide a cultivation method of hydrangea and a cultivation method of ornamental plant in which a commercial value is increased even higher.SOLUTION: A cultivation method of hydrangea includes a process of removing a part of flower clusters out of a plurality of flower clusters while leaving only three flower clusters. A cultivation method of ornamental plant includes a process of removing a part of flower clusters out of a plurality of dense flower clusters.SELECTED DRAWING: Figure 4COPYRIGHT: (C)2016,JPO&INPIT【課題】商品価値がより高められたアジサイの栽培方法及び観賞用植物の栽培方法を提供する。【解決手段】アジサイの栽培方法は、複数の花房のうち、3つの花房のみを残して一部の花房を取り除く工程を含む。観賞用植物の栽培方法は、密集した複数の花房のうち、一部の花房を取り除く工程を含む。【選択図】図4