And this year in Boulogne-sur-Mer, the theme of the 13th Jardin éphémère is superstition, although by no means all of the examples are obvious. Fortunately, almost all are given explanations, with the single exception of a woman's left leg treading on a turd: too obvious to explain? I think not: the Mairie was probably worried about parents objecting to the word 'Merde !' being used – yes, even the French can be sensitive about the use of strong language. Remember how Alfred Jarry used 'Merdre !' as a euphemism in Ubu Roi? But that was in 1896, and things haven't moved on since then? Apparently not. The overwhelming impression I came away with was of education: Boulogne's Jardins éphémères are something really special.
A horseshoe, of course, is a lucky charm, and also a symbol of strength and fertility. It wards off evil spirits.