Quite interesting example of letting nature get on with it.
First picture minus 6C plants with zero protection.Early morning.
Second, the time- the same, view of outside of my greenhouse.
Third picture inside greenhouse with heater set on Frost Stat ,which, according to the heater’s instructions, should prevent this from happening.Temp went down to minus 2c.
All plants in the greenhouse will recover by about 10.30 am despite “wilty” appearance of some of them, but I feel that the outsiders are going to be much better plants next year, as a result of being grown more naturally.