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History of Early American Landscape Design

Greenhouse

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(Green house, Green-house)
See also: Conservatory, Hothouse, Nursery, Orangery

History

The term greenhouse designated a plant-keeping house built to protect tender plants from cold weather. Although these structures were most commonly referred to as greenhouses, the terms “conservatory,” “glasshouse,” and “hothouse” were often used synonymously. Attempts were made to distinguish among the terms. According to Bernard M’Mahon (1806), for example, plants were planted in free soil and in “beds and borders” in a conservatory, whereas in a greenhouse, plants were kept in pots or tubs. A. J. Downing later wrote that plants were kept in the greenhouse until they were ready to be displayed in the conservatory. In actual usage, however, the terms were often used interchangeably. “Hothouse” or “stove” was also used to describe that part of the greenhouse with higher temperatures (see also Conservatory, Hothouse, and Orangery).

Although plant-keeping structures have been built since antiquity, the modern greenhouse, in which light and temperature could be artificially controlled, was possible only after 1700 when glassmaking improved and glass became cheaper [Fig. 1]. In addition to blowing glass, a pouring process was used by manufacturers. The earliest plant houses, which were called greenhouses in this country, had façades with large window openings that were integrated into a masonry, wood, or stone structure [Fig. 2]. These early buildings were replaced by iron-and-glass houses around the turn of the nineteenth century, which revolutionized greenhouse construction by allowing wide-span and filigree structures that let in more light. [1]

Greenhouse construction, evident as early as John Bartram’s 1739 description of Westover, Va., on the James River, continued through the mid-nineteenth century at sites ranging from elite houses such as Mount Clare, Charles and Margaret Tilghman Carroll’s plantation in Baltimore, to the more modest dwelling and greenhouse advertised for sale in Charleston in 1748. The pervasiveness of the structure reflects an interest in keeping exotic plants, which was a fundamental function of a greenhouse. In addition, the greenhouse allowed the extension of the growing season by providing a supportive environment for starting seeds, ripening fruit, and forcing flowers.

Two major concerns in greenhouse design were the admission of light and the creation of artificial heat. These problems could be solved in the modest construction of a building with a high back wall, a low front wall, and a glazed roof above, as shown in the greenhouse at Kirk Boott’s residence in Boston [Fig. 3]. The brick wall of a greenhouse could also serve as support for trellises or espaliered fruit trees. Most simple greenhouses built in this mode did not require the high temperatures or moist atmosphere of hothouses. As M’Mahon pointed out in 1806, such a greenhouse needed only enough artificial heat to “keep off frost and dispel damps,” whereas the hothouse required an inside stove and more glass (see Conservatory and Hothouse for further discussion of heating systems).

Texts

Usage

"I went... to visit Robert Morris’s greenhouse [serre chaud] near Philadelphia. It had very beautiful specimens of orange trees, lemon trees, and pineapples.]
  • c. September 6, 1797, A Schedule of Property within the State of Pennsylvania Conveyed by Robert Morris, to the Hon. James Biddle, Esq. And Mr. William Bell, in Trust for the use and account of the Pennsylvania Property Company [3]
"An Estate called the Hills Situate in the Northern Liberties, near the City of Philadelphia, containing Three hundred acres of land highly improved, and on which are erected a large and elegant greenhouse, with a hot house of fifty feet on each side; on the back front a House for a gardener, with one large and five small rooms, also two large rooms on the back or north front of the hot house, with an excellent vault under the green houses, and a covered room for preserving roots & c in winter; the whole being a strong stone building, with the necessary glasses, casements, fruit trees, plants shrubs & c in good order; a well of excellent water, with a pump close to the north front the whole enclosed within a large Garden stocked with fruit trees of the best kind &c. & c."

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Notes

  1. A disadvantage of cast iron technology was that condensation developed as a result of iron’s high thermal conductivity. Humidity control, always a concern, became a real issue in design. Therese O’Malley, Glasshouses: The Architecture of Light and Air (Bronx, N.Y.: The Garden, 2005) view on Zotero
  2. Moreau de St. Méry's American Journey (1793-1798), trans. and ed. Kenneth Roberts and Anna M. Roberts (Garden City, New York: Doubleday & Company, Inc., 1947) 240, view on Zotero.
  3. A Schedule of Property within the State of Pennsylvania Conveyed by Robert Morris, to the Hon. James Biddle, Esq. And Mr. William Bell, in Trust for the use and account of the Pennsylvania Property Company, c. September 6, 1797, Autograph Collection of the Historical Society of Pennsylvania, original MS reproduced Robbins, 1987, 136, view on Zotero.

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History of Early American Landscape Design contributors, "Greenhouse," History of Early American Landscape Design, , https://heald.nga.gov/mediawiki/index.php?title=Greenhouse&oldid=6945 (accessed May 12, 2024).

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