Bunkyo Ajisai Matsuri - Hydrangea) Flower Festival, at Hakusan-jinja Shrine, Hakusan Park, Bunkyo-ku, Tokyo
10th - 18th June, 2018 | Hakusan Park, Bunkyo-ku, Tokyo
About 3,000 hydrangeas roots are usually in full bloom in early June.
Various events are scheduled on Saturdays and Sundays during the festival period.
official website ›› http://www.city.bunkyo.lg.jp/ajisai.html/