Most bedding plants grown by gardeners fall into this category. Half-hardy perennials, such as dahlia, gazania, gerainium, gerbera, and tuberous begonia are often treated as annuals. Some, like gazania, are treated as half-hardy annuals and are discarded when a hard frost occurs. Others, like geraniums, can be lifted before a frost, repotted or repropagated by cuttings, and grown indoors during the winter. Still others, like dahlias and tuberous begonias, are lifted and their root structures stored in a cool but frost-free location.
Gardeners can grow a variety of plants for a single, annual season of enjoyment.
However, a deeper look may reveal something more than the typical annual. Iowa State University , Ames, Iowa. This information subject to a usage policy .