• Trim off spent flower stems to tidy plants up for the remainder of the season. Plants have a tendency to spread and form a patch, which may be easily reduced in size or divided in spring or early autumn. Look spectacular when planted in groups. Grow 6-10" tall in full sun or part shade. Perennial in zones 2-9

Trim off spent flower stems to tidy plants up for the remainder of the season. Plants have a tendency to spread and form a patch, which may be easily reduced in size or divided in spring or early autumn. Look spectacular when planted in groups. Grow 6-10" tall in full sun or part shade. Perennial in zones 2-9