Tsukimi

Tsukimi (月見^?) or Otsukimi, literally moon-viewing, refers to Japanese festivals honoring the autumn moon. The celebration of the full moon typically takes place on the 15th day of the eighth month of the traditional Japanese lunisolar calendar; the waxing moon is celebrated on the 13th day of the ninth month. These days normally fall in September and October of the modern solar calendar.

The tradition dates to the Heian era, and is now so popular in Japan that some people repeat the activities for several evenings following the appearance of the full moon during the eighth lunisolar month.

On the evening of the full moon, it is traditional to gather in a place where the moon can be seen clearly and give offerings to the moon in order to pray for an abundant harvest.

Tsukimi traditions include displaying decorations made from Japanese pampas grass (susuki) and eating rice dumplings called Tsukimi dango in order to celebrate the beauty of the moon.

Seasonal produce are also displayed as offerings to the moon. Sweet potatoes are offered to the full moon, while beans or chestnuts are offered to the waxing moon the following month. The alternate names of the celebrations, Imomeigetsu　(literally "potato harvest moon") and Mamemeigetsu ("bean harvest moon") or Kurimeigetsu ("chestnut harvest moon") are derived from these offerings.

These dishes are known collectively as Tsukimi dishes (月見料理 tsukimi ryōri^?). 

Tsukimi refers to the Japanese tradition of holding parties to view the harvest moon. The custom is thought to have originated with Japanese aristocrats during the Heian period,^{[citation needed]} who would gather to recite poetry under the full moon of the eighth month of the lunisolar calendar, known as the "Mid-Autumn Moon." Since ancient times, Japanese people have described the eighth lunisolar month (corresponding to September on the contemporary Gregorian calendar) as the best time for looking at the moon, since the relative positions of the earth, sun, and moon cause the moon to appear especially bright.^{[citation needed]}
 
Susuki is a grass native to eastern Asia throughout most of China, Japan, Taiwan, and Korea. 
The Full Harvest Moon is the full moon that occurs closest to the autumnal equinox.