Annual plants are those that complete their life cycle within a single growing season. They germinate from seeds, grow, flower, produce seeds, and die all in one year. Common examples of annual plants include marigolds, zinnias, and tomatoes. These plants are often favored in gardens for their vibrant blooms and ability to produce fruit quickly. Due to their short life cycle, annual plants require regular planting each year. They thrive in various climates and can adapt to different soil types. Gardeners often choose annuals for their ability to provide continuous color and harvest throughout the growing season.