Just lost lots of seedlings and larger plants when the heaters tripped off during the night in my "greentents". It was 32 and clear outside. My plants were in the basement and really needed the sunlight so I moved them out. Mistake. Weird thing was that there was no clear pattern to the plants that froze. Guess there is some truth to the different hardiness in the different varieties.
Looking for a new home with a south facing hill where I can build a earth sheltered greenhouse with a bubble filled roof. This has been an eye opening thread.
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