What is the definition of annuals in the context of plant life cycles?

In the context of plant life cycles, the term "annuals" refers specifically to plants that complete their entire life cycle within a year or less. This means that they germinate from seeds, grow, flower, and produce seeds all within a single growing season. After they produce seeds, the parent plants typically die. This characteristic distinguishes annuals from other plant categories, such as biennials, which take two years to complete their life cycle, and perennials, which live for multiple years and can return year after year.

The nature of annual plants allows them to adapt quickly to environmental changes. Their short life cycle enables them to flourish in various conditions and take advantage of seasonal resources. Additionally, many popular garden plants, such as marigolds and zinnias, are annuals, making them a common choice for seasonal decoration and beautification in landscaping. Understanding this definition is crucial for effective garden planning and management, particularly in distinguishing between different plant types based on their life cycles.