Greenhouse Cymbidium (Gorey 'Trinity' AM/RHS x Maufant 'Rozel' FCC/RHS) Photo: Jardin botanique de Montréal (Gilles Murray) Orchidée (Eria albidotomentosa) Photo: Jardin botanique de Montréal (Gilles Murray) On crumbling old walls, nature reclaims its ground in the Orchids and Aroids Conservatory Photo: Jardin botanique de Montréal (Michel Tremblay) Orchid (Dendrobium kingianum) Photo: Jardin botanique de Montréal (Gilles Murray) OngletsDescriptionThis greenhouse contains some fabulous orchid and aroid specimens in a setting resembling the ruins of an ancient fortress invaded by tropical plants. Different species and cultivars are displayed here when in bloom and at their showiest. Area217 m²TemperatureSummer temperatures, daytime: 21°C, nighttime: 20°C. Winter temperatures, daytime: 20°C, nighttime: 20°CHumidity35%For more informationOrchidsGrowing orchidsAroidsIndoor plants 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 Economic (Useful) Plant Garden Perennial Garden Arboretum Rose Garden First Nations Garden ExploreWorth exploringOrchids: highly evolved, but vulnerable The fact that there are so many orchids — 750 genera and 30,000 species — in so many places around the globe is evidence of their tremendous adaptability and of how they have evolved in close step with the organisms that help them multiply. They often rely on a specific type of insect to fertilize them! Aroids: not so showy, but still fascinating There are close to 110 genera and 3,300 species of aroids, found mostly in tropical regions. While their flowers are less striking, these plants display some ingenious adaptations. A number of them — dieffenbachias, philodendrons and pothos — make great, hardy houseplants. Did you know?Did you know?Teuscher, a great orchid fancier! Have you heard of Henry Teuscher (1891-1984)? He was a horticulturist and landscape architect. In fact, he designed the Montréal Botanical Garden before being named its first superintendent. With his boundless enthusiasm for orchids, he started the Garden’s orchid collection. He was rewarded for his work by having a genus of orchids, Teuscheria, named after him. The orchid collection The orchid collection is one of the Montréal Botanical Garden's largest and most significant, both in terms of its size and popularity. It contains close to 4,000 specimens, representing only 276 of the 750 known genera. Lifting the veil Orchid roots are covered in a veil, called the velamen, made up of several layers of sponge-like cells. It is very useful, playing a variety of roles. When there is lots of water available, it fills up with moisture that the plant can use if conditions change. If the plant comes into contact with tree bark, the velamen cells become sticky, allowing the orchid to cling to its host.