Cultivating plants year-round in a controlled environment is a phenomenon that has been around since ancient Roman times. The use of the ‘modern’ greenhouse has been around since the 13th century in Italy when plant samples collected during expeditions to other lands were brought back and needed to be protected from cold temperatures. With a sustained interest over the centuries in new, exotic, and delicate plants, scientists used greenhouses to grow plants for study and research while amateur gardeners (a.k.a. plant fanatics) found them to be havens that protected the objects of their obsession.
Greenhouse at Marsh Garden, Dallas, TX. April 2003. Eleanor Laney, photographer. Smithsonian Institution, Archives of American Gardens, Garden Club of America Collection |
A vast
array of greenhouse variants proliferated as glassmaking technology improved
and specific cultivation requirements were addressed. Just think of all the formats and shapes and sizes
of ‘glasshouses’ there are--everything from hot houses and conservatories to
Wardian cases, bell jars, terrariums, and cold frames. Why over the years, there have even been
glass structures as specific as orchid houses, palm houses, temperate houses, orchard
houses and fig houses! All pretty much
foster the same elements: light, regulated temperature, moisture, and
protection from the outside elements.
The orangery
is another glasshouse variation that was developed to address particular plant
cultivation needs, in this case citrus fruits.
Some featured stoves to provide heat while others actually had open
fires! Plants were sometimes grown in
large tubs so they could be moved outside when temperatures grew warmer.
Orangerie at Parterre, Newport, RI. Sept. 2008. Kathryn Whitney Lucey, photographer. Smithsonian Institution, Archives of American Gardens, Garden Club of America Collection |
Regardless of the type, glasshouses serve as microenvironments that keep delicate plants from dying during the harsh winter months. What gardener doesn’t love the thought of an endless growing season?
-Brittany
Spencer-King
Smithsonian Gardens Intern, May 2012
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