nedible(Toxic!) leaves are the fresh pick of late spring season.Originating from China ,its dried roots are used as remedy for many illness in traditional Chinese medicine.In America Rhubarb's got the nickname as pie plant for its a popular filling along with strawberries in pies.Rhubarb is packed with Vitamins K & C, Calcium, Potassium, Manganese and is a good source of fiber.Read more about it