Perennial

częsty

(appearing or recurring again and again — see also recurrent)

odwieczny

(continuing without cessation or intermission for several years, or for an undetermined or infinite period — see also perpetual, unceasing)

powracający

(appearing or recurring again and again — see also recurrent)

powtarzający się

(appearing or recurring again and again — see also recurrent)

wieloletni

(of a plant: active throughout the year, or having a life cycle of more than two growing seasons)

bylina

(plant active throughout the year, or has a life cycle of more than two growing seasons)

roślina wieloletnia

(plant active throughout the year, or has a life cycle of more than two growing seasons)