One of the most beautiful manifestations in the municipality is the Flower Festival. It is held on the third Saturday in May on the Town Square in Petrovac na Mlavi.

The event attracts a large number of both flower exhibitors and visitors. There is an accompanying program in which women's associations, fruit growers, winemakers, brandy makers, souvenir producers and others participate. For the most beautiful flower stands, the organizer awards cash prizes, and after the opening ceremony, there is a rich cultural and artistic program.