Menyuan Rapeseed Flower Festival Introduction: Menyuan Rapeseed Flower Festival is held from July 18th to 25th every year. In Menyuan in July, the pure blue sky and white clouds, the vast green grassland, cattle and sheep everywhere, and the hundred-mile sea of rapeseed flowers formed by 600,000 acres of rapeseed flowers create a unique and magnificent spectacle, attracting countless tourists to visit.