Yes. I think having plants on benches helps avoid the coldest air, simply by being up off the ground. Covers are great, when I can fit everything under them. They are especially great with a space heater. I can still be 40 degrees above the outside temp at night, in a small space with a heater.
And bower, that is a story that confirms the topic of this thread, everything in the greenhouse freezes, but the outside plants are fine. I'm sure most people who hear that story find it hard to comprehend. It is indeed odd.
I'm also wondering if that effect happens in structures covered by an inflated double layer of plastic, instead of just one layer. The cushion of air between the plastic layers might be enough to stop it.
|