The Floralies Internationales de Montréal was the 8th horticutural world's fair recognized by the Bureau of International Expositions. The fair was split in two sequential exhibitions, starting with an indoor event in the former Olympic Velodrome and later on different gardens on Notre Dame Island, the site of the Expo 67. 17 countries were represented at the indoor exhibition and the Velodrome was converted to Montreal Biodome afterwards. The indoor exhibition opened on 17th May and closed 29th May. The gardens at the outdoor part opened on 31st May. 12 countries showed their gardens to the public during the summer until 1st September.