Koishikawa Korakuen Plum Festival
Time Out says
Constructed under the watchful eye of 17th century Tokugawa daimyo Mito Komon, Koishikawa Korakuen's plum tree garden remains beautiful to this day. The best time to visit the grounds is in late February, when the trees become filled with purple and white flowers. This yearly festival also features performances of traditional music, Edo-style street artistry and guided tours of the park.