La Toussaint is a two day festival during which the French celebrate two holidays together: All Saints Day, the day for remembering Catholic saints, and All Souls Day, the day for praying for the souls of the deceased
1 November - All Saints' Day - Toussaint
While Halloween is celebrated with trick or treat & parties, on November the 1st Toussaint or All Saints Day, it is traditional for the French to visit the graves of loved ones and decorate them with Chrysanthemums and sometimes Heathers.
Chrysanthemums symbolise hope of future resurrection. Toussaint is an important holiday for the French and a week or so before the shops will be filled with flowers especially Chrysanthemums.
As Chrysanthemums are traditionally laid on graves in France, it would be a considerable faux-pas to give these flowers as a gift to French friends or neighbours.
...Bon week-end a tous,