Festivals have a sociocultural function of promoting social integration and solidifying the existing order. This is in correspondence with the purpose fulfilled by the nation`s symbol for the sake of the country`s perpetuity. The national flower of Korea is the rose of Sharon. The Festival of Rose of Sharon is the one and only festival which is themed with the nation`s symbol. Although the festival has little history so far and its conditions do not meet the standard of a festival, it is decided that such business is essential both in terms of our cultural identity and national dimension. The development scheme for the festival of Rose of Sharon, the national flower, is as follows. The purpose of holding the festival should be oriented to consumers not suppliers, and the body of the festival should be a voluntary private organization. In addition, it should be based on a specific regional area and provide spectacles as well as programs to visitors such as a hill of Rose of Sharon in a massive scale that go beyond their daily experience. The adequate period to hold the festival is considered to be around the time of Liberation Day, in the period of which flowers blossom and social interests are high on national affection. However, the Arbor Day can also be a consideration to facilitate more people involvement. In order to draw out voluntary participation, which is regarded as a critical factor in festivals, some illusionary outcomes different from reality should be acquired through the play of festival, and more attention should be paid to the nature of the festival, that is, its role as a social integration of a community.