Historically an Orangery was a place for the cultivation of oranges and lemons and other exotic plants.
The classic Orangery design had stone built parapet walls containing large vertical sliding sash windows such that the glass area on the sides was in excess of 75%.
The Orangery is now often attached to the main house and used as room as well as for plants.
The Orangerie at the Palace of the Louvre, 1617, inspired imitations that were not eclipsed until the development of the modern greenhouse in the 1840s.
The Orangery at Margam Park, Wales, was built between 1787 and 1793 to house a large collection of orange, lemon and citron trees inherited by Thomas Mansel Talbot.