Is Pampas Grass Annual Or Perennial?

Is Pampas Grass Annual Or Perennial? Pampas grass, Cortaderia selloana, is a large perennial grass native to Brazil, Argentina and Chile. Mature plants can reach 10 feet tall and 6 feet wide. Does pampas grass come back every year? A perennial, pampas grass germinates during the spring months and produces bulbs within the first year.