Huge, 2 1/2″ blooms are violet-blue with white centers bloom all summer long.  The deeply lobed leaves are dark green with lighter green marbling and looks great from spring through fall.  ‘Rozanne’ is one of the longest blooming perennials.  The plants have a vigorous, spreading growth habit, spreading 2-3 feet in a year, making it great for use as a groundcover.  Excellent heat tolerance and deer resistant.

‘Rozanne’ was named the 2008 Perennial Plant of the Year by the Perennial Plant Association.