|I bought a 4 shelf mini green house with a zippered plastic cover. About when can I put seedlings outside in it? It would get sun most of the day but I live in western New York/Great Lakes area so we usually have frost til mid May.
|Answer from NGA
March 3, 2011
|The covered greenhouse could act like a cold frame which will keep the seedlings from freezing as long as the temperatures don't drop too much below 30F overnight. I think you should wait until April to put it outdoors. You'll want to make sure to unzip the cover during the day when the greenhouse is full sunshine (zip it back up after the sun goes down to hold in the heat). If you leave the greenhouse covered in the all day sunshine, the plastic cover will intensify the heat and kill your plants. Hope this answers your question.
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