Perennials are defined as plants that live for how long?

Perennials are classified as plants that live for more than two years. This classification highlights their ability to survive through multiple growing seasons, often coming back year after year. Unlike annuals, which complete their entire life cycle in one growing season, or biennials, which take two years to complete their life cycle, perennials can endure various environmental conditions and typically develop extensive root systems that enable them to withstand drought and cold temperatures.

In contrast, plants that live for less than one year or for one to two years would not be classified under the perennial category, as they do not possess the longevity that defines perennial plants. Seasonal plants, while they may bloom during specific times of the year, do not have the perennial characteristic of longstanding life. Therefore, the defining feature of perennials is their capacity to thrive for an extended period, making them a vital component of landscape design and garden planning.