Annuals complete their entire life cycle in one year. Typically, annuals are started from seed in the spring and die off with the first fall frost. Annuals can be purchased in flats from the greenhouse or plant nursery in the late spring and planted directly into the garden or transplanted to planters.
Annuals typically produce abundant blooms and create a profusion of color in the summer garden. Those purchased from greenhouses as seedlings are generally ready to bloom and provide color earlier than perennials.
Annuals bloom for the entire season, whereas perennials often bloom for a short period. Adding annuals to the perennial bed is an effective way to keep your flower bed in bloom all summer long.
Annuals must be protected from late spring or early fall frosts and must be replaced every year, but they make up for the added work with their cheery blooms.