Classified as an historic site, this garden was laid out between 1919 and 1939 by the renowned British landscape gardener Lawrence Johnston, creator of Hidcote Manor. The overall conception was to compose the garden like a series of paintings, often eleborated around a central element such as a sculpture, a fountain, a massed planting of a certain species, or a collage of colours with contrasting plants and flowers.Serre de la Madone was bought in 1999 by the Conservatoire du Littoral, with contributions from the town of Menton, the Conseil Général des Alpes-Maritimes, the Conseil Régional (Provence-Alpes-Côte d'Azur) and the fondation Electricité de France. Serre de la Madone will now become, with its "palazzo" and its garden restored, an international center for enthusiasts for rare plants.