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An orangery or orangerie was a room or a dedicated building on the grounds of fashionable residences from the 17th to the 19th centuries where orange and other fruit trees were protected during the winter, similar to a greenhouse or conservatory.
The orangery provided a luxurious extension of the normal range and season of woody plants, extending the protection which had long been afforded by the warmth offered from a masonry fruit wall. A century after the use for orange and lime trees had been established, other varieties of tender plants, shrubs and exotic plants also came to be housed in the orangery, which often gained a stove for the upkeep of these delicate plants in the cold winters of northern Europe. As imported citrus fruit, pineapples, and other tender fruit became generally available and much cheaper, orangeries were used more for tender ornamental plants.
The orangery originated from the Renaissance gardens of Italy, when glass-making technology enabled sufficient expanses of clear glass to be produced. In the north, the Dutch led the way in developing expanses of window glass in orangeries, although the engravings illustrating Dutch manuals showed solid roofs, whether beamed or vaulted, and in providing stove heat rather than open fires. This soon created a situation where orangeries became symbols of status among the wealthy. The glazed roof, which afforded sunlight to plants that were not dormant, was a development of the early 19th century. The orangery at Dyrham Park, Gloucestershire, which had been provided with a slate roof as originally built about 1702, was given a glazed one about a hundred years later, after Humphrey Repton remarked that it was dark; although it was built to shelter oranges, it has always simply been called the "greenhouse" in modern times.
The 1617 Orangerie (now Musée de l'Orangerie) at the Palace of the Louvre inspired imitations that culminated in Europe's largest orangery. Designed by Jules Hardouin-Mansart for Louis XIV's 3,000 orange trees at Versailles, its dimensions of 508 by 42 feet (155 by 13 m) were not eclipsed until the development of the modern greenhouse in the 1840s, and were quickly overshadowed by the glass architecture of Joseph Paxton. Notable for his 1851 design of the Crystal Palace, his "great conservatory" at Chatsworth House was an orangery and glass house of monumental proportions.
The orangery, however, was not just a greenhouse but a symbol of prestige and wealth and a feature of gardens, in the same way as a summerhouse, folly, or "Grecian temple". Owners would conduct their guests there on tours of the garden to admire not only the fruits within but also the architecture without. Often the orangery would contain fountains, grottos, and an area in which to entertain in inclement weather.
In England, John Parkinson introduced the orangery to the readers of his Paradisus in Sole (1628), under the heading "Oranges". The trees might be planted against a brick wall and enclosed in winter with a plank shed covered with "cerecloth", a waxed precursor of tarpaulin, which must have been thought handsomer than the alternative:
"For that purpose, some keepe them in great square boxes, and lift them to and fro by iron hooks on the sides, or cause them to be rowled by trundels, or small wheeles under them, to place them in a house or close gallery."
The building of orangeries became most widely fashionable after the end of the Eighty Years' War in 1648. The countries that started this trend were France, Germany, and the Netherlands, these countries being the ones that saw merchants begin importing large numbers of orange trees, banana plants, and pomegranates to cultivate for their beauty and scent.
Orangeries were generally built facing south to take advantage of the maximum possible light, and were constructed using brick or stone bases, brick or stone pillars, and a corbel gutter. They also featured large, tall windows to maximise available sunlight in the afternoons, with the north facing walls built without windows in a very heavy solid brick, or occasionally with much smaller windows to be able to keep the rooms warm. Insulation at these times was one of the biggest concerns for the building of these orangeries, straw became the main material used, and many had wooden shutters fitted to keep in the warmth. An early example of the type of construction can be seen at Kensington Palace, which also featured underfloor heating.
Contemporary domestic orangeries are also typically built using stone, brick, and hardwood, but developments in glass, other materials, and insulation technologies have produced viable alternatives to traditional construction. The main difference with a conservatory is in the construction of its roof - a conservatory will have more than 75 per cent of its roof glazed, while an orangery will have less than 75 per cent glazed. Domestic orangeries also typically feature a roof lantern. Improved design and insulation has also lead to an increasing number of orangeries that are not built facing south, instead using light maximising techniques to make the most of available natural sunlight.
The first examples were basic constructions and could be removed during summer. Notably not only noblemen but also wealthy merchants, e.g., those of Nuremberg, used to cultivate citrus plants in orangeries. Some orangeries were built using the garden wall as the main wall of the new orangery, but as orangeries became more and more popular they started to become more and more influenced by garden designers and architects, which led to the connection between the house and architectural orangery design. This became further influenced by the increased demand for beautiful exotic plants in the garden, which could be grown and looked after in the orangeries.
This created the increased demand in garden design for the wealthy to have their own exotic private gardens, further fuelling the status of the orangery becoming even more the symbol of the elite. This in turn created the need for orangeries to be constructed using even better techniques such as underfloor heating and the ability to have opening windows in the roofs for ventilation. Creating microclimates for the propagation of more and more exotic plants for the private gardens that were becoming creations of beauty all around Europe.
Continental European orangeries
- Versailles Orangerie, in the gardens of the Palace of Versailles
- Strasbourg, park of the Orangerie
- Tuileries: Orangerie in the Tuileries Gardens, Paris
- Belvedere Orangerie
- Düsseldorf-Benrath, Orangerie
- Fulda, Orangerie
- Gera, Orangery and "Küchengarten"
- Hanover, a part of the Herrenhausen Gardens
- Ingolstadt, Orangerie in Harderstraße 10
- Kassel, Orangerie
- Philippsthal, Orangerie
- Potsdam, Orangerieschloss (illustration, above right)
- Bronnbach abbey in Wertheim am Main, (1773–1775)
- Warsaw, Stara Pomarańczarnia (en: Old Orangery; built 1786–1788) and Nowa Pomarańczarnia (en: New Orangery; built 1860) at the Royal Łazienki Park
- Peterhof, Bolshaya Kamennya Oranzhereya
- Tsarskoe Selo, Bolshaya Oranzhereya (1762, 1820)
- Kuskovo, Moscow, Oranzhereya (illustration, right)
- Linneanum, Botaniska trädgården (Uppsala) – The Orangery, Botanical Garden, Uppsala University 1787
- Linnéträdgården, Uppsala 1655
- Finspång Castle Orangerie 1832
- Nynäs Slott, Manorial Estate (Castle) and Orangery, Nynäs
- Bergianska trädgården, Stockholm, gamla orangeriet, now used as a restaurant
In the United Kingdom
The orangery at Kensington Palace (1761) is the earliest surviving work there by Sir William Chambers. At a length of 28 metres (92 ft), it was the largest glasshouse in Britain when it was built. Although designed as an arcade with end pavilions to winter oranges, the light levels under its solid roof were too low for it to be successful.
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. The original house has been razed, but the surviving orangery, at 327 feet (100 m), is the longest one in Wales.
- Ham House & Garden, Richmond, Surrey, Hanbury Hall, Worcestershire
- Ickworth House, Suffolk, where it forms part of the garden front of the dwelling wings
- Powis Castle, Montgomeryshire, a central feature on the late-18th-century terraces
In 1970, Victor Montagu constructed an orangery in his formal Italianate gardens at Mapperton, Dorset.
In the United States
In the United States, the earliest partially intact surviving orangery is at the Tayloe house, Mount Airy, Virginia, but today it is an overgrown ruin, consisting only of one major wall and portions of the others' foundations. A ruined orangery can also be seen at the gardens of Eyre Hall in Northampton County, Virginia.
The oldest-known extant orangery in American can be seen at the Wye Plantation, near Tunis Mills (Easton), Maryland. This orangery sits behind the main house and consists of a large open room with two smaller wings added at some point after the initial construction. The south-facing wall consists of large triple-hung windows. A second story was traditionally part of the style of orangeries at the time of its construction in the middle to late 18th century as a way of further insulating the main section where the plants were kept. According to the current resident, Ms. Tilghman (a descendant of the Lloyd family), it served as a billiards room for the family. This plantation is also notable as having been the home of Frederick Douglass as a young slave boy. The orangery is described in the book Glass Houses, as is the orangery at Mount Airy.
Ms. Tilghman notes that plants are still stored inside the building in winter, but a frame has been constructed to hold the houseplants, and the whole of the frame is covered with plastic to keep in moisture. In this way, the plants do not have to be watered through the entire winter.
Another orangery stands at Hampton National Historic Site near Towson, Maryland. Originally built in 1820, it was part of one of the most extensive collections of citrus trees in the U.S. by the mid-19th century. The current structure is a reconstruction built in the 1970s to replace the original, which burned in 1926.
In the late 19th century, Florence Vanderbilt and husband Hamilton Twombly built an orangerie on their estate, Florham, designed by architects McKim, Mead & White. It is now on the Florham Campus of Fairleigh Dickinson University. 
An 18th-century style orangery was built in the 1980s at the Tower Hill Botanic Garden in Boylston, Massachusetts. Another early 19th century example can also be seen at Dumbarton Oaks in Washington, D.C. It was built in 1810, and is now used to house gardenias, oleander, and citrus plants during the winter.
- Gervase Markham, in The Whole Art of Husbandry (London 1631) also recommends protecting other delicate fruiting trees— "Orange, Lemon, Pomegranate, Cynamon, Olive, Almond"— in "some low vaulted gallerie adjoining upon the Garden".
- Billie S. Britz, "Environmental Provisions for Plants in Seventeenth-Century Northern Europe" The Journal of the Society of Architectural Historians 33.2 (May 1974:133–144) p 133.
- Britz 1974:134f
- Its columned exterior relates it to the architecture of the house, a feature of orangeries although not of their modern descendants, greenhouses.
- Graham Stuart Thomas, "Orangeries in the National Trust", Quarterly Newslette of the Garden History Society, 1967:25.
- Such precaution against a sheltering south-facing wall was arranged by the architect Salomon de Caus at Heidelberg about 1619, with removable shutters on an unobtrusive permanent frame, according to Britz 1974:134.
- "How to build an orangery". Country Life. 8 July 2014.
- Oster, Uwe A. (2011). "Goldene Äpfel der Hesperiden". Damals (in German). Vol. 43 no. 6. pp. 65–69.
- "Iconic London Attractions - Visit Kew Gardens". kew.org.
- The list was given in Stewart-Thomas, loc. cit..
- Note by T. E. C. W. in the Quarterly Newsletter of the Garden History Society.
- British Listed Buildings. Gives details of orangery at Norton Hall.
- Christopher V. Novelli (2006). Battersea. National Register of Historic Places Registration Form.
- "Hampton: A Revolutionary Place". Umbc.edu. Retrieved 2013-04-27.
- Ann Milkovich McKee (2007). Images of America — Hampton National Historic Site. Charleston, SC: Arcadia Publishing. ISBN 978-0-7385-4418-2.
- Florham: Lives of an American Estate. Friends of Florham. 2011. pp. 55–56. ISBN 978-0615567433.
- Dumbarton Oaks. "The Orangery". The Orangery. Retrieved 2011-03-12.
- Woods, Mary (1996). Glass Houses: A History of Greenhouses, Orangeries and Conservatories.
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