Biennial plants typically live for how many growing seasons?

Biennial plants are characterized by their unique life cycle that spans two growing seasons. During the first year, they typically grow leaves and establish their root systems, but they do not flower or produce seeds during this time. It is in the second growing season that biennial plants complete their life cycle by flowering, producing seeds, and eventually dying. This distinction is important in understanding plant life cycles and aids in practices related to management and application in contexts such as right of way maintenance, where knowledge about plant behavior is crucial for effective pesticide use and ecosystem management. Thus, biennial plants indeed live for two growing seasons, making this the correct answer.