Happy to help!
According to my knowledge, the Yangzhou Flower Fields (旧州花海) in Jiangsu Province, China are typically in bloom from March to May. During this time, tens of thousands of flowers such as rapeseed, canola, and mustard cover a vast area spanning over 10 square kilometers.
If you’re interested in visiting specifically for the flower fields, I recommend planning your trip during late spring when the blooms are usually at their peak. However, please note that weather conditions and maintenance schedules might affect the flowers’ availability from year to year.
Would you like more information or would you like me to clarify anything?