Hansik
Celebrated in both North and South Korea, Hansik is the spring festival. It falls on April 5th, the 105th day of the Korean calendar. An ancient tradition of this day is the practice of only eating cold foods. Hansik occurs around the same time as Arbor Day around the world, so a new tradition is planting trees and shrubs.
www.handipoints.com/fun-facts/korean-holidays
Arbor Day (April 5th): As a result of the deforestation from the Japanese occupation of Korea and the Korean war, the government designated April 5th as Arbor Day and promoted it as a time for citizens to go green and plant a tree. Note that this is no longer an official holiday, although some people do still plant trees on this day.
morganrecruiters.com/index.php/korea_info/singl...
en.wikipedia.org/wiki/Arbor_Day
South Korea
Arbor Day (Sikmogil, 식목일 was a public holiday in South Korea on April 5 until 2005. The day is still celebrated, though. On non-leap years, the day coincides with Hansik.
en.wikipedia.org/wiki/Hansik
т.е., товарищи, японцы вырубили в Корее лес, и те устроили праздник по посадке леса. заодно совместили с Цинмин (судя по холодной пище). ирония ситуации в том, что в Японии тоже есть праздник зелени ))
Greenery Day (みどりの日 Midori no hi?) is a Japanese holiday. Between 1989 and 2006 it was celebrated on April 29. In 2007 Greenery Day was moved to May 4.
The present observation of Greenery Day as a national holiday in Japan stems from the celebration of the Emperor Shōwa's birthday on April 29 every year during the Shōwa era. In 1989, following the ascension of the current Emperor Akihito to the Chrysanthemum Throne, the name of the holiday was changed from "Birthday of the Emperor" to "Greenery Day".
en.wikipedia.org/wiki/Greenery_Day
По политическим причинам (Хирохито был императором во время Второй мировой войны), было решено не называть праздник в честь самого императора. Из нескольких вариантов названий выбрали День зелени — Хирохито был известным ценителем живой природы.
ru.wikipedia.org/wiki/День_зелени
и вообще, это часть Золотой недели, оказывается))