The first of the Five Flower Festivals of Bunkyo Ward. The cherry trees along Harima-zaka were first planted in 1960 as part of an effort to develop nature across the ward. Today over 120 cherry trees (mainly Yoshino cherry trees) come into bloom from late March. Also, roads are closed during the weekend in the middle of the festival and various children’s events and musical performances are held. See here for a run-down of places to see the cherry blossoms in Tokyo.