Perennial

birkaç senelik

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

bütün sene boyunca

(lasting or remaining active throughout the year, or all the time)

periodik

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

sürekli

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

yinelenen

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

çok yıllık

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