The floral tradition associated with the Carp Festival in Japan is the use of koinobori, or carp-shaped windsocks. Celebrated on May 5, known as Children's Day, families display colorful koinobori outside their homes to symbolize the hope for children’s strength and success in life. The carp represents resilience, as it is believed that a carp can swim upstream against strong currents, embodying the perseverance desired in children. Alongside koinobori, families may also decorate with samurai dolls and enjoy festive dishes, emphasizing the importance of family and celebrating children's health and well-being.