The term perennial is frequently used by gardeners to refer to herbaceous perennial flowers.
Most herbaceous perennials grow and flower for several years.
In the spring, the plant grows new leaves from its crown or roots. Plants that grow from bulbs and bulb-like structures are also herbaceous perennials but are often classified separately as flowering bulbs. An advantage of perennials is that they do not have to be planted every year. Many perennials only flower for a few weeks each year, however, with careful planning you can have some perennials in bloom most of the season. Some consideration should be given to how a plant looks when it is not in bloom.