Horticulture

The Columbia Encyclopedia, 6th ed. The Oxford Pocket Dictionary of Current English Further reading

cold frame

The Columbia Encyclopedia, 6th ed. | 2011 | Copyright

cold frame in horticulture, sun-heated board frame covered with a removable top of glass or other transparent material and sunk into the ground. The top may be solid or slatted or screened for shade. The cold frame is used to start seedlings in early spring (four to six weeks before the average frost-free date), to harden seedlings or plants removed from greenhouses or hotbeds, and to protect plants during the winter. A hotbed is an artificially heated cold frame.

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cold frame

The Oxford Pocket Dictionary of Current English | 2009 | Copyright

cold frame • n. a four-sided frame of boards with a removable glass or plastic top. The frame is used to house, protect, and harden off seedlings and small plants, without artificial heat.

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"cold frame." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. 26 May. 2012 <http://www.encyclopedia.com>.

"cold frame." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. (May 26, 2012). http://www.encyclopedia.com/doc/1O999-coldframe.html

"cold frame." The Oxford Pocket Dictionary of Current English. 2009. Retrieved May 26, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O999-coldframe.html

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Free newspaper and magazine articles

	Cold frames provide shelter for seedlings.(Home & Garden) Newspaper article from: Daily Herald (Arlington Heights, IL); 3/7/1999
	The Peter Surridge Gardening Club: Indispensible timber cold frames with class. Newspaper article from: The Birmingham Post (England); 10/13/2001
	Use food-safe wood when building cold frames.(Home & Garden) Newspaper article from: Daily Herald (Arlington Heights, IL); 9/23/2001