Walnut planting has a history of over 600 years in Licheng District. It is a main exporting nut in Jinan, with Jizhuamiao and Zhipi as the most famous kinds. It is especially well-known for its rich nutrition, accordingly reputed Healthy Food. It is good to brain nerves and for patients of lung deficiency, chronic cough, asthma, asthenia after illness. As a specialty of Jinan, walnut is even exported to European countries.