Extending for the entire duration of life.
Lasting or remaining active throughout the year, or all the time.
Appearing or recurring again and again; recurrent.
Continuing without cessation or intermission for several years, or for an undetermined or infinite period; neverending or never failing; perpetual, unceasing.
Of a plant: active throughout the year, or having a life cycle of more than two growing seasons.
Appearing again each year; annual.
A plant that is active throughout the year, or has a life cycle of more than two growing seasons.
A thing that lasts forever.
A person or thing (such as a problem) that appears or returns regularly.