It's an evolving problem, said Antonin St-Jean, the head of conservation at Les Amis de la Montagne, the stewards of Mount Royal. WATCH | Protecting plants on Mount Royal:Début du widget Widget. Fin du widget Widget. Enlarge image (new window) Mount Royal, renowned for its view of the Montreal skyline, hosts five million visitors a year. We have the chance to have really large populations of these different plant species, which is quite rare in southern Quebec, he said.