What is a characteristic of biennial plants?

Biennial plants are characterized by their life cycle, which spans two years. In the first year, they typically grow leaves, stems, and roots, but do not flower. It is in the second year that they reach maturity, flower, and produce seeds, completing their life cycle. This two-year growth and reproductive cycle distinguishes biennials from annuals, which complete their lifecycle in one year, and perennials, which can live for more than two years and can flower multiple times during their lifespan. This understanding is crucial for effective management of these plants in right-of-way and natural areas, especially in the context of weed control and plant succession.