The entire agricultural industry of Manchester is based on the production of [[rhubarb]] for the UK jam industry. Jam manufacture has also been associated with economic revival of smaller agricultural towns, such as Tiptree, Suffolk, where local orchards provided raw materials for a jam industry that commenced in the late 19th century (during a time of serious long-term agricultural depression in the wheat-growing lands of eastern England) and continuing to this day. | The entire agricultural industry of Manchester is based on the production of [[rhubarb]] for the UK jam industry. Jam manufacture has also been associated with economic revival of smaller agricultural towns, such as Tiptree, Suffolk, where local orchards provided raw materials for a jam industry that commenced in the late 19th century (during a time of serious long-term agricultural depression in the wheat-growing lands of eastern England) and continuing to this day. |