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cold frame

a bottomless, boxlike structure, usually covered with glass or transparent plastic, and the bed of earth that it covers, used to protect plants.
Origin of cold frame
1850-55 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for cold frame
  • To avoid an outbreak, it is best to keep the cold frame as dry and warm as possible, without inhibiting plant growth.
  • With adequate moisture seed can also be planted outdoors spring through early summer, or in a cold frame late summer through fall.
  • Seeds are best sown in a cold frame, for natural stratification, as soon as they are ripe.
  • If seed are sown in a cold frame immediately after autumn ripening, stratification is said to produce a more even germination.
  • For propagating in an outdoor cold frame, cuttings are taken in late summer or early fall.
  • When the seedlings have germinated, bring the pots into full light in a cold frame or greenhouse.
  • In a cold frame, sow on the surface or lightly cover the seeds.
  • Seedlings were moved to a cold frame for hardening before transplanting in the fi eld.
  • Seedlings were moved to a cold frame for hardening before transplanting in the field.
  • The plants were overwintered outdoors in a cold frame covered with bark mulch.
British Dictionary definitions for cold frame

cold frame

an unheated wooden frame with a glass top, used to protect young plants from the cold
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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