Cherry blossom for a Japanese person is a major event, I have heard. I also know it is a weather change time and is a sign of summer season. They all keep track of the flower blooming. I guess in Japan it is from January to April. I had great privilege to see Cherry blossom season in Brazil. It is really stunning site to watch. It was at the end of August, And for Indian it was just mind-blowing as we do not have this particular tree existent in our country.