...to cook and eat them.
https://www.jn.pt/local/noticias/braga/braga/interior/bracarenses-arrancam-couves-dos-jardins-da-cidade-11019759.htmlThe beds were filled with Brassicas, a plant similar to small cabbages and the same family of broccoli and cauliflower. "I've already learned that the plants have been removed, but there is no problem with that. The only problem is that I do not know if they are edible," JN Altino Bessa, the city councilor for the Environment in Braga, said.
Those who plucked the plants seemed to have no doubts about whether or not they could be consumed. A few days after the night of St. John, Altino Bessa said that the beds "have to be without plants because people step on everything." The replanting of flowers will take place only after the pilgrimage that takes Braga thousands of people.
Only in Portugal.