Regarding the post down below I am very sorry to say that in the Giardino dell’Orticultura in Florence IS NOT possible to get married. They just don’t give out this corner of green for private events. This is a public space. Instead for getting married in a private garden, just write me an email to firstname.lastname@example.org.
This garden is quite in the center of Florence and they are more than happy to host blessings.