We had a frost last night. There was a report of ice on cars. Never experienced a frost in September before, it usually waits until November.
Luckily I think we had a bit of mist covering the plots which kept the worst at bay and I have my best courgette next to a water butt.
I had not pickup up on it or I would have covered some of my courgettes. Even if they did not get frosted they certainly do not like it that cold.