Mirabilis jalapa is a flowering plant that goes by many names. Commonly known as the four o'clock flower, it gets its name from the fact that it blooms in the late afternoon. Other names for the plant include marvel of Peru, beauty of the night, and afternoon lady. In some places, it is called the false jalap, in reference to its use in traditional medicine as a substitute for the laxative herb Jalapa. The plant has a long history of use in traditional medicine and is believed to have many therapeutic properties. Regardless of the name you choose, Mirabilis jalapa is a beautiful and fascinating addition to any garden.