The Four O'Clock, 'Mirabilis Jalapa' produces beautiful mixed colored flowers. Four O'Clocks are leafy, shrublike, multi-branched perennials that produce flowers from late spring through fall. The plants are erect and spreading with fragrant flowers that are borne singly or in clusters. Individual flowers are trumpet shaped, about an inch across at the end and about two inches long. Four O'Clocks are truly a great addition to any garden.