Rose-coral flowers gracefully age to light pink and then often cream as the semi-double petals open up to display a golden boss of stamens. Fragrant and hardy, this reliable perennial tolerates the challenges of Chicago area climate and soils with panache. For best bloom plant in full sun and water through the first growing season until the plant has re-established a functional root system. Free from most pests and diseases if given air space around the foliage to deter downy and powdery mildews.