Also known in Chinese medicine as Bai Zhi, the roots are used to treat many ailments including toothache, headache, skin rashes, female reproductive disorders and congestion.This stunning perennial alpine herb can tower over 6 feet tall, has a beautiful dense leafy center, then sends out hollow stocks loaded with upside down 4 inch umbrella shaped flowers. It is the scent that is famous, exuding from both the plants and the seeds. It resembles a cross between maple walnut ice cream and apples, and has been used in sachets for centuries. Loved by a vast array of benefical insects, it is a sight to behold when in full bloom. Prefers moist soils. Semi-shade to full sun.