Annuals are plants that complete their life cycle in one growing season. They are typically planted in the spring, grow, flower, produce seeds, and die within the same year. While annuals require replanting every season, they often provide vibrant, long-lasting blooms and can be used to add seasonal color to gardens and landscapes. Popular examples include marigolds, petunias, and zinnias. These plants are often chosen for their fast growth and bold visual impact.