PERENNIAL

'Perennial' is a commonly used English adjective with several meanings relating to yearly activity; see the linked Wiktionary search for a formal dictionary definition.
More specifically, Perennial may refer to:

★ Perennial plant, a plant which lives for more than two growing seasons. All trees and shrubs are perennials. It may be herbaceous and die back to underground structures such as corms, tubers, or bulbs.

★ Perennial stream, a stream or river that flows all year round

★ Perennial (publisher), a publisher

★ Perennial International, a company listed on the Hong Kong Stock Exchange

★ Perennial Media, an independent film production company located in Shreveport, Louisiana

★ Perennial, a station wagon present in the Grand Theft Auto series