But it all depends on types of cherry blossoms. There are actually many sakura cultivars. Some naturally exist in the nature and some of them start blooming even in January. On the other hand, there are sukuras which are artificially made. Somei-Yoshino is the most famous and popular artificial species of cherry blossoms and people generally refer to it as sakura.
Somei-Yoshino was made for the cultivation (probably for gardening) purpose and has been planted almost everywhere on the Japanese soil. By the way, I heard Some-Yoshino are all clones. Anyway it's exquisite and so enjoyable to watch, more specifically to throw a hanami party under the flowers.
I didn't have much enough time to have a hamami party this season, but just walking down Nakno Street which is one of famous hanami spots in Tokyo is quite fun.
I am listing some of popular hanami spots in Tokyo below.
- See also;
2. <When To Visit Tokyo> http://funtravelinjapan.blogspot.jp/2013/09/when-to-visit-tokyo.html
The most popular park for hanami. But too crowded. I wouldn't recommend.
This park is pretty enjoyable even if it's not in the sherry blossom season. Very beautiful and well maintained.
See also; <Heal yourself in the busiest town in the world> http://funtravelinjapan.blogspot.jp/2011/01/heal-yourself-in-busiest-town-in-world.html
I haven't been to this place in the cherry blossom season. I just heard viewing the flowers from a boat on the moat is awesome. But I never heard there is a good hanami party spot in and around the park, because it's just nearby the Imperial Palace. You gotta behave yourself.
Japan Meteorological Agency uses cherry blossoms of this park as a benchmark to monitor if the cherry blossoms come into bloom in Tokyo. I think this is a OK place for viewing and partying.
This is not a park. But walking down the riverside roads are quite fun. I don't think you can throw a hanami party in the area, but don't worry. There are bunch of ding-out places around there. Choices are variety.
- Other Hanami Spots in Tokyo: http://www.japan-guide.com/e/e3050.html
- About Somei-Yoshino: http://en.wikipedia.org/wiki/Prunus_%C3%97_yedoensis
- About Cherry Blossoms: http://en.wikipedia.org/wiki/Cherry_blossom