Which type of plant completes its life cycle in one year?

The correct answer is the type of plant that completes its life cycle in one year is an annual. Annual plants are characterized by their complete growth cycle from germination to the production of seeds within a single growing season, typically within a span of one year. After they have produced seeds, they die, completing their life cycle.

In contrast, perennials are plants that live for more than two years, often going through repeated seasonal growth and dormancy phases. Biennials take two years to complete their life cycle, typically developing foliage in the first year and flowering in the second. Evergreens, while they might be perennial, refer specifically to plants that retain their leaves throughout the year rather than those that die off after one growing season. Understanding these distinctions is critical for effective gardening and landscape management.