The roots survive the first winter. During the second growing season, the biennial blooms, produces seeds and then dies. Biennials may reseed and appear to be perennial. Gardeners usually purchase biennials from nurseries, rather than grow them from seed. This avoids wasted space taken by biennials during their first, nonflowering year of growth.
Biennials require the same basic type of care as annuals and perennials.
Perennials, annuals and bulbs give the home landscape color and foliage interest throughout the growing season. Dried flowers, fruit, seed heads and leaves may be left on plants for winter interest and as a source of food and shelter for birds. The most successful gardens usually begin with a carefully planned design. If you forego planning, the results are often a haphazard collection of plants. Too many variations in shape, color, size and texture create confusion.