UK also. It's not cold enough to kill it. Temp is, what it is. If you can shelter the plant when it rains too much, do it. I bring mine inside. Keep going till the plant almost looks like it's dying while monitoring the Trichomes for the proper time to harvest. Hopefully you have a short flowering time strain, but if not, still do as above. First freeze is historically December 1st. Weed matures about the same as tomatos ripening, so that will give you a very rough rule of thumb as to development. : ) Oh yea, dry in the house by hanging the whole plant. The plant should dry in about 10 to 12 days. Then, cure in Home and Bargin sealed jars as per this sites instuctions.