Comfrey roots and leaves contain allantoin, a substance that helps new skin cells grow, along with other substances that reduce inflammation and keep skin healthy. Comfrey ointments have been used to heal bruises as well as pulled muscles and ligaments, fractures, sprains, strains, and osteoarthritis. - mountsinai.org It also makes great tea fertilizer or chop-n-drop mulch in the garden as well as simplemente feed for chickens, rabbits, or larger livestock. Grows in many soil types but doesn’t handle soggy soil that will rot the taproots. It enjoys full sunlight but tolerates shade. This is NOT a sterile variety and will self-seed. Priced based on plant size.