The deterioration of park functions due to the growth and decline of plants is now a common problem in urban parks nationwide. To maintain the dynamically changing plants in a healthy state within a limited management budget, it is essential to develop optimal and efficient planting management policies and to involve a planting management supervisor who directs specific management tasks related to these policies on site. This paper describes the process of planting management practice at Obuse General Park in Nagano Prefecture of Japan, outlining and the attempt to restore park functions through planting management supervision and its results.The thinning and trimming of trees to create a space to maintain natural tree form can was carried out in this project, which contributes to the improvement of the landscape and prolongation of tree life. This also leads to a reduction in medium- to long-term management costs by reducing unnecessary pruning and trimming work. In the future, it is important to train planting management supervisors and promote planting management supervision services to reflect this in the planting management system of urban parks nationwide.
