A plant that lives for more than two years is called a perennial. Perennials can survive for multiple growing seasons, unlike annuals that complete their life cycle in one year or biennials that live for two years. They often develop extensive root systems, allowing them to withstand adverse conditions and re-emerge each spring or after the dormant season. Many perennials are valued for their flowers, foliage, and longevity. Examples include lavender, peonies, and hostas. Gardeners often favor perennials because they provide consistent blooms and can be a more sustainable choice than annual plants.