Herbaceous plants are non-woody plants that die back to the ground at the end of their growing season. Examples of herbaceous plants include annuals, biennials, perennials, and bulbs. Annuals complete their life cycle in one year or less and must be replanted each year. Biennials take two years to complete their life cycle and typically flower in the second year. Perennials live for many years and come back year after year. Bulbs are underground storage organs that contain a bud, stem, and leaves that can be used to propagate new plants.