Answer: Your county agricultural extension office (ph# 970/498-7400) should be able to provide you with a low-cost bulletin on building and using cold frames. Your library may have a copy of Rodale's Illustrated Encyclopedia of Gardening and Landscaping Techniques (Rodale Publishing, ISBN# 0-87857-898-6, which has plans for many different types of frames. Cold frames are best used for starting growing cold-season crops once they've germinated (brassicas, lettuce, etc.) and for hardening off seedlings. Tender crops (tomatoes, peppers, melons, etc.) are best started in place where the temperature won't drop below 50F. A grow-light fixture hung over a table is a good place to start these, and then you can ease them out of the "tropics" of your home with the cold frame. Enjoy!
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