Cotton Candy Grass - North American native and a must-have for the low-maintenance garden. The color lasts well into the fall. Perfect for indoor cut flower bouquets. Cotton Candy Grass is an exciting new ornamental grass that withstands heat, humidity, poor soil and even drought. Very easy to grow, it reaches a mature height of 3-4 feet tall and gets 3-4 feet wide. It will grow throughout the country. Groupings, as a backdrop to the perennial border or open hedge. Best in full sun.