If we visit Sunflowers Garden in December will we still see beautiful flowers blooming?

Yes, there are still many flowers you can enjoy, such as red sage, marigold and French marigold.
Transport: You need to take metro line 2 at Gongyuanqian, and transfer to line 8 at Changgang, and then do another transfer to line 4 at Wanshengwei. Get off at Jiaomen from Exit B, and take bus Nanshan2 directly to Baiwan Kuiyuan Station.