During the spring festival known as May Day, the type of flower frequently used to decorate homes is the lily. Lilies symbolize purity and renewal, making them a fitting choice for celebrating the arrival of spring. In many cultures, May Day marks the end of winter and the beginning of new life as flowers begin to bloom again. Observances often include the creation of floral arrangements and the adorning of homes with fresh flowers, highlighting the importance of nature’s cycles and the joy of seasonal change.