DENDROLOGY

Detailed explanation-1: -Annuals take a single year to complete a full life cycle. Most are planted in the spring, bloom in the summer, and die in the fall. A few, known as winter annuals, germinate in the later summer and autumn, are dormant during the winter, and grow during the next spring and summer.

Detailed explanation-2: -annual, any plant that completes its life cycle in a single growing season. The term is usually applied to herbaceous flowering plants in which the dormant seed is the only part of an annual that survives from one growing season to the next.

Detailed explanation-3: -Annual plants complete their life cycle in one growing season. Biennial plants are planted in one year, grow through the year, grow on and flower during the next year. Perennial plants grow strong year after year.