Kuramae Shrine (蔵前神社) is a very popular spot for kawazu sakura viewing in Tokyo. The large trees surround both sides of the torii (Japanese archway) in the entrance and there are also large mimosa trees that bloom at the same time, creating a gorgeous and colorful contrast which is why it's very popular for photoshoots (check out the location tag on instagram). I suggest going early in the morning if you want to get there without large crowds for photos.
Where: 〒111-0051 Tokyo, Taito City, Kuramae, 3 Chome−14−11 蔵前神社
When: Usually mid February ~ Early March
How much: Free!
Website (Japanese): http://kuramaejinja.justhpbs.jp/
I went in the afternoon so there were many mothers with their children getting out of school and meeting at the shrine to see the blooms.
The trees are very large and tall and you can get photos of them without people by taking them further up the trees with the surrounding buildings as a backdrop.
so beautiful! Is the yellow tree the mimosa? so lush <3