Flexi Says: Unlike you, most plants continue to grow throughout their lives, although individual organs may grow only to a certain size. Of course, their lives may be short so the growth is limited: plants which complete their growth from seed to flower and seed in a single season are annual plants. Biennial plants grow during their first year and flower and seed their second year. Perennials (perennial plants) have the most potential for growth, continuing from season to season indefinitely; some prairie buffalo grass plants are thought to be 10,000 years old, having developed from seeds during the last Ice Age!
