Sakuya Konohana Kan

The Sakuya Konohana Kan is a botanical garden set within one of the world's largest greenhouses, located in Tsurumi Ryokuchi park at 2-163 Ryokuchi Koen, Tsurumi-ku, Osaka, Japan. It is open daily except Mondays; an admission fee is charged.

The gardens were constructed between 1987 and 1989, and currently contain about 15,000 plants representing 2,600 species from various climatic zones. Total floor space is about 6,900 m² with a maximum height of 30 meters. The conservatory is divided into a number of cool and hot houses as follows:

Alpine House - 200 alpine plant species including primula, blue poppy from the Himalayas and western China, and alpine plants from the Alps, Rockies, and Japanese mountains

Source: Wikipedia