Their common characteristic is that their roots persist from year to year. Stems and leaves of some may remain, but in most the tops die back to the soil each winter.
Perennials are suitable for many locations.
Perennials with similar cultural requirements are grouped into plantings known as rock gardens, wildflower gardens, bog gardens, or the perennial flower border. Space is not available here to fully describe the plants and flowers. Garden catalogs or a visit to a nursery, garden center, or botanic garden will all help to familiarize you with available plants. Mixed borders of both perennials and herbaceous perennials can provide an interesting landscape year round. Here, chrysanthemums provide fall color as a low edging with cannas and other annuals behind them.