Rhubarb grows naturally ​in southern ​Siberia and was ​discovered there. ​Its name comes ​from the ​Russians who grew ​it along ​the Rha River, ​now known ​as the Volga ​River. It ​has a long ​history and ​was used as ​a medicinal ​herb by the ​ancient Chinese ​over 5,000 years ​ago. Nowadays, ​rhubarb is grown ​in many ​places and is ​loved for ​its delicious stalks ​used in ​cooking and baking.