In these days, citizens living in urban areas are increasingly interested in developing their communities. As a part of the process of their community developments, there are various kinds of citizen groups engaged in horticultural volunteer activities in public spaces such as urban parks, open spaces along sidewalks and several public facilities. In this study, we conducted interviews with each leader of 20 citizen groups which taking care of flowers in Sapporo city to reveal the attitudes of their groups. In the process of this research, we focused on the difference of places where these volunteer activities were being conducted and the difference of relationships with neighbors. As the result, it appeared that 20 citizen groups were classified into four categories from two aspects whether they are conducting planting and maintaining flowers at sidewalks or neighboring flowerbeds, and they work cooperating with other neighbor volunteer groups. Each four categories have different motivations or issues relating to horticultural volunteer activities. In order to take measures to address each issue, it is necessary to build coalitions across several volunteer groups and community groups.
