|Grown for its large, 4-inch, semi-double, pink flowers shaded purple underneath. Blooms summer to fall. This popular, long-lived perennial with a woody base reaches up to 5 feet tall. Adds color to partial shade, fall borders. Plants in areas with harsh winters will benefit from a fall mulching. Staking may also be necessary, especially to keep plants upright after a rain. Divide in fall or early spring. Slow to establish, but then spreads rapidly. Sometimes referred to as 'Konignin Charlotte'.