Which life cycle describes weeds that complete their life cycle within a single year?

• A. Annual
• B. Biennial
• C. Perennial
• D. Decennial

Answer: (A)

Weed life cycles are about how long a plant lives and when it reproduces. An annual weed completes its entire life cycle in one growing season or year: it germinates, grows, produces seeds, and dies within that same year. That’s why the option describing a cycle within a single year is the correct one. Biennials need two years to finish their life cycle, usually flowering in the second year. Perennials live for multiple years and can regrow after seasons. Decennial isn’t a standard term used for weed life cycles in turf work. Understanding that annuals finish in one year helps explain why control strategies focus on preventing seed production within that same year.