Wisteria is convenient as a ceiling material of rest space like at a public park. It is okay, even in the strong sunlight. It does not only bloom a beautiful flower, but also, in the summer, its overlapping leaves provide people a cool sunshade. In winter, leaves are falling, and the sunshine through to the bench seat. Sometimes, Carpenter bee（Xylocopa appendiculata） are coming. They are a big bee, but no need to scare. They are a family of a honeybee. They just come to gather flower nectar of wisteria.