Owing to the period of which it is held (11-days), as well as its timing in the middle of September—Japan’s wettest month with seemingly continual rains—the festival goes by the name of the “Never-ending Festival” in Japanese.
Daradara Matsuri is also sometimes called the Ginger Root Festival (Shoga Matsuri) and fresh clumps of the stuff are sold in the grounds of Shiba Daijingu. The story goes that when Yui Shosetsu, a military strategist led an uprising against the Tokugawa shogunate, he poisoned the Tamagawa Aquaduct, but the people of Edo were saved by because ginger—known for its antidotal properties—used to be washed in the water.
The middle weekend is the best time to visit. There is dancing and music on the 16th and a procession of mikoshi from 1pm on the 17th.