Perennial
A perennial is a plant that bears leaves and perhaps flowers every year. Some plants only bear leaves and flowers once, then they die. Such plants are called annual. Other plants live for two years. They are called biennial.
Most trees and shrubs are perennial plants.
Perennial Media
Common chicory, Cichorium intybus, is a herbaceous perennial plant
Dahlia plants are tender perennials that originate from climates that are warm all year round and need special care to survive cold winters.
Switchgrass is a deep-rooted perennial. These roots are more than 3 meters long.