The next generation of 'Royal Standard' is new and improved with thicker foliage that forms a polished mound of lush green in the garden and large white flowers that are so fragrant! Flowers rise above the foliage attracting butterflies in late summer into the fall.
Cut back after frost. Low maintenance. Divide in spring every 4-5 years. Prefers a rich, moist, well-drained soil in part shade but can handle full sun.