Greenhouse The decor of the Hacienda evokes the interior courtyards of Hispanic gardens Photo: Jardin botanique de Montréal (Michel Tremblay) Epiphyllum 'Dorian' Photo: Espace pour la vie (Gilles Murray) Lace cactus (Mammillaria elongata) Photo: Jardin botanique de Montréal (André Rider) Cactaceae Photo: Jardin botanique de Montréal (André Rider) Pleiospilos compactus cactus in flower Photo: Jardin botanique de Montréal (Gilles Murray) The Hacienda has an unusual decor Photo: Jardin botanique de Montréal (Gilles Murray) The Hacienda is nicknamed the “Sunlight Conservatory” Photo: Michel Tremblay Greenhouse of tropical forests Photo: Jardin botanique de Montréal (Michel Tremblay) Hacienda Photo: Jardin botanique de Montréal (Michel Tremblay) OngletsDescriptionCacti and other succulents originating for the most part from the American continent grow side by side in the Hacienda. Our greenhouse is designed to represent the indoor gardens of Mexico, whose plants are chosen for their ornamental qualities. The smallest specimens will be found in a display unit: Lithops, for example, also known as “living stones” to remind us of a camouflage that protects them from herbivores. The Hacienda evokes the inner courtyards typical of farm operations not just in Mexico but in the southern regions of Spain and the United States as well, and which feature clay tiles and white mortar walls. The courtyards serve as a bridge between the street and the house. They have a cooling effect on homes thanks to the plants that grow there and the breezes that blow through. Gardening without water … or almost! Cacti and other succulents are ideal for landscaping in dry areas, like here in our South American-inspired Hacienda. These plants are not only attractive, but also environmentally friendly – they require less water, in addition to preserving biodiversity, if indigenous species of the area are used. The wide variety of shapes, colours and textures of dryland plants make them highly popular with gardeners. They come from hundreds of botanical families, too, and many continents. Perhaps too popular Some species in arid regions have become victims of their popularity. Their growing interest for these species has even led to the formation of international plant trafficking networks that offer specimens taken directly from the natural environment. The Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) was adopted to solve this problem, by preventing trafficking in species threatened with extinction in the wild. Trade in many different succulents is regulated under the Convention. Area217 m²TemperatureSummer temperatures, daytime: 21°C, nighttime: 20°C. Winter temperatures, daytime: 17°C, nighttime: 14°CFor more informationCacti and other succulentsEpiphytic cacti Map Shade garden Flowery Brook and Lilacs Frédéric Back Tree Pavilion Aquatic Garden Reception Gardens Peace Garden Courtyard of the Senses Chinese Garden Youth Gardens Alpine Garden Japanese Garden Leslie Hancock Garden Shrub Garden Toxic plantsMedicinal plantsMonastery GardenQuébec Corner Garden of Innovations Food Garden Perennial Garden Arboretum Rose Garden First Nations Garden ExploreLiving stones Masters of camouflage, living stones often grow unnoticed on rocks or sand. Their low profile lets them withstand drying winds and go unseen by herbivores. These plants tolerate extreme temperatures of up to 50oC by day, dropping to near freezing at night. Living stones belong to the Aizoaceae family, made up of 100 genera native to the deserts of South Africa. They belong to the genus Lithops (from the Greek word lithos, stone) and are recognizable by their two fleshy leaves separated by a slit from which flowers and new leaves emerge. They bloom briefly, abandoning their camouflage just long enough to attract pollinators. During dormancy, Lithops need no water. The leaves shrink, and the plant retracts to ground level. This is an excellent means of defense against drying winds, the blazing sun, and herbivores. This dormant season can last for up to six months. Cycads These plants had their heyday back in the times of the dinosaurs, some 150 million years ago. Although the cycads resemble palm trees, they are actually related to conifers, in that they produce cones where the sexual cells form. The plants are either male or female, so it takes one plant of each sex to produce viable seeds. Most cycad species have very restricted geographic distributions. This is a problem for their survival and many cycads are on the Red List of endangered species (IUCN). Loss of habitat and their popularity with collectors have caused their populations to decline. Cycads comprise three plant families and include the genera Cycas, Zamia, Encephalartos and Dioon, all of which can be seen in the Hacienda and Arid Regions Greenhouse. Epiphytic cacti The epiphytic cacti, native to moist tropical forests, often grow high up in trees, clinging to them for support without actually feeding on them. Not much sunlight penetrates through the canopy, so the stems of these cacti are generally flattened or cylindrical, to capture as much light as possible. Since there are fewer herbivores this high up, their spines are smaller. They produce colourful, fleshy fruit, to attract birds and help spread their seeds. The more cultivated epiphytic cactus is probably the Christmas cactus (Schlumbergera), a horticultural hybrid for which there are many cultivars. Did you know?Did you know?A saguaro – pronounced “sawaro” – symbol of the American Southwest (Carnegia gigantea), figures prominently in many Western movies. After growing for about thirty years, this cactus stands about a metre tall. Its first arms usually appear once it reaches 3 metres or so, and about 75 to 100 years old. At maturity, it can be 15 to 20 metres tall and weigh up to 10 tonnes when engorged with water. It blooms in spring, at nighttime. Bats are its main pollinators.