Which type of plants are classified as biennials?

Biennial plants are characterized by their unique life cycle, which spans a two-year period. During the first year, they typically focus on vegetative growth, establishing roots, stems, and leaves. In the second year, these plants flower, produce seeds, and complete their life cycle. This growth pattern distinguishes biennials from annuals, which complete their lifecycle in just one year, and perennials, which live for multiple years and can flower repeatedly. The classification of biennial plants hinges on this two-year developmental process, making the correct identification essential for understanding plant types and their growth habits.