May 1 is the date when France and almost all countries celebrate Labor Day. It is a bank holiday. On this day workers celebrate their social and economic achievements. In France, Labor Day is celebrated in conjunction with the celebration of “Le Jour du Muguet”. Traditionally, lily of the valley (“muguet”) is sold everywhere on streets across France on the first of May and is one of the symbols of springtime and of good luck. 80% of the production of lily of the valley originates from the region of Nantes.