This year, the cherry blossom will start blooming ( in Tokyo area ) around March 29. Later than last year.
It's been bit cold lately, so makes sense.
If you are planning to come visit Tokyo to see Cherry blossom, the full bloom will be around April 7.
At the moment, we are still wearing thick coat, so cannot imagine that flower season is right there....I can feel Spring is there, but the temperature is too low.