When is the best time to travel to Jiangsu Province? thank you

how much time do you have? As the old saying goes, fireworks will set off in Yangzhou in March, and the scenery in Jiangnan will be very good after March in the lunar calendar. If you go to Jiangnan in spring and autumn, you can do it. However, there is a big gap between the north and the south of Jiangsu, such as Yancheng. You can only see the red-crowned crane wintering in winter. Don't come along the Yangtze River in winter and summer. It's extremely hot in summer and cold and humid in winter, so it's not suitable for traveling.