What to do in argenteuil

The Valley of Plants and Flowers 2026: Argenteuil’s premier botanical event

This weekend, Saturday 11 and Sunday 12 April 2026, come discover the 30th edition of Vallée aux plantes et aux fleurs in Argenteuil. A perfect chance to stock up on flowers and plants as spring gets underway!

2025 Christmas lights in Argenteuil: an original and free light parade in the 95

Christmas is coming to Argenteuil (95)! On Friday, December 5 at 6 p.m., the lighting of the decorations on Avenue Gabriel-Péri will kick off the festivities with La Fabrique à délices, a light show where strawberry marshmallows and sugar characters transform the city into a sweet kingdom.

Les Nuits des Lumières: free video mapping show on the Argenteuil basilica (95)

Argenteuil is set to shine brightly with Les Nuits des Lumières! From April 20 to May 11, 2025, the Saint-Denys Basilica will be transformed every evening (except Saturday) into a magical video mapping show. A free light show where digital art, heritage and technological innovation come together for a unique immersive experience!