Minus 3.5 overnight last night! I am waiting anxiously to see if my attempts to protect my more vulnerable vegetable has been successful. I fleeced the carrots, beetroots, peas, celery, broccoli, but not the spinach & rocket. The temperature in the greenhouse got down to + 7 last night so I am not concerned about the tomato plants yet, have yet to see what the temperature was in the Polly tunnel. Inside the house our wood stoves are keeping us cosy!