Shinjuku Gyoen was constructed on the site of a private mansion belonging to Lord Naito, a "daimyo"(feudal lord) of the Edo era. Completed in 1906 as an imperial garden, it was re-designated as a national garden after the Second World War and opened to the public.
With 58.3 ha(144 acres) in size and a circumference of 3.5 km, it blends three distinct styles, French Formal Garden, English Landscape Garden and Japanese Traditional Garden, and is considered to be one of the most important gardens from the Meiji era.
- The greenhouse has been completed, which has been open since November 20, 2012.
Tropical- and subtropical-zone plants can be appreciated, as well as endangered plants being conserved and cultivated at Shinjuku Gyoen are displayed.