Plants are all different. Some live for a single season or a few seasons, some endure for a decade, and still, a few last for up to a century. Most hardy landscape shrubs have an average lifespan of 10 to 15 years before they need replacing. Even with regular maintenance, trimming, hedging spraying and fertilizing most plants will still need to be replaced.
These are without a doubt, high maintenance plants. They complete all parts of their life cycle in one growing season, usually providing viable seed for the next season. Because of the short time frame, most annuals produce very showy flowers to attract pollinators to ensure there existence. Most gardeners have a favorite flower akin to their childhood memories, like sweet peas, zinnias or sunflowers. The popularity of these plants has created a niche that fills home centers and nurseries alike with trays and flats filled with sprouted seedlings in bud and bloom. Seed is still available to plant, but most people prefer to plant the started plants instead.
My Top Shelf of Annuals:
( in no particular order )
Snapdragons Stocks Zinnias Dianthus
Cosmos Marigolds Petunias
Alyssum Four-O'clocks Nasturtiums Sweet Peas
Sunflowers Heliotrope Impatiens Violas
Next week I will be looking into Biennials and Perennials to consider.