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Any plant that persists for several years, usually with new herbaceous growth from a part that survives from season to season. Trees and shrubs are perennial, as are some herbaceous flowers and vegetative ground covers. Perennials have only a limited flowering period, but, with maintenance throughout the growing season, they provide a leafy presence and shape to the garden landscape. Popular flowering perennials include bellflowers, chrysanthemums, columbines, larkspurs, hollyhocks, phlox, pinks, poppies, and primroses. See alsoannual, biennial.
This entry comes from Encyclopædia Britannica Concise. For the full entry on perennial, visit Britannica.com.