Hozuki represents the food for the ancestors. It is one of the important decoration for Obon. Hozuki stays one year, so you bring the old Hozuki back here, and buy new one. Obon is the welcome party for Japanese ancestors. It happens in July in Tokyo and in August in everywhere else. All the sprits of Japanese ancestors back on their descendants house. Other decorations are cucumber and eggplant. Cucumber represent a horse for their quick ride to their home, and eggplant represent caw to slow back to heaven.