Creating a cold frame does not need to be expensive or time-consuming. Even folks without any woodworking skills can build a structure to protect newly seeded plants or tender crops from inclement weather. From simple to sophisticated, there is a cold frame for every gardener.









The most rudimentary cold frame may be all that you need. Here, seed-free straw bales filled with soil and topped with a repurposed window will do the job just fine so long as the window is secure in the straw.




With a little more time, you can create a cold frame out of recycled hemlock or other untreated wood and top it off with Lexan polycarbonate or other translucent material. On warm days, vent the structure with a felled branch or garden tool, such as a pitchfork or shovel.




Some folks are perfectly happy investing a bit more time and money into a system that will last forever and needs little attention once it is built. This cold frame is constructed out of cedar planks and topped with a sheet of acrylic. The pièce de résistance, however, is a heat-sensitive hydraulic riser that senses the temperature and regulates ventilation, as needed. (For more information on constructing this cold frame, watch the audio slideshow: Cold Frame Construction Details).

Learn all about Nikki Jabbour's quest to grow in cold in Fine Gardening issue #153.

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