but I'm braced for the worst. My patio popup greenhouse is staying around 59 and the harbor freight 6 x 8 out in the yard is around 55 (more cold weather tolerant plants in there). I use the mylar blankets inside both of them at night - and make a bit of a "tent" around the plants. The patio GH is just heated with two 65 watt outdoor light bulbs and two strands of incandescent rope lights, and it's the warmest of the two GH. « Return to the thread "Brrrr how is your greenhouse doing?"
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