Does the subject want to ask "When will Dazeshan grapes be eaten?"? October. Grapes in Dazeshan ripen in late September, and the China Dazeshan Grape Festival will be held from September to the end of October. The National Day holiday provides people with an opportunity to visit Dazeshan, and October is the best month to enjoy grapes in Dazeshan. Dazeshan grape is a specialty of Dazeshan Town, pingdu city City, Shandong Province, and a symbol product of chinese national geography, with a cultivation history of hundreds of years. In 28, the General Administration of Quality Supervision, Inspection and Quarantine approved the protection of geographical indication products for Dazeshan grapes.