From 1 to 31 May 2026, the City of Luxembourg and the Luxembourg City Business Association (UCVL) are inviting businesses in the capital to decorate their windows with botanical elements, natural materials and flower arrangements.

A jury will award three tied prizes of €2,000 each, while the public will be able to vote for their favourite shop window via QR code, also with €2,000 up for grabs.

In addition, free workshops in shop window design will be held on 21 and 22 April 2026 at the City's Design Hub.