I have just left mine outside for now, but I am closer to Windsor anyways so I am not getting sub zero weather, just a good layer of frost. This morning was 1 degree and it had frost for about 4 hours, I have just left all my leaves alone except at the bottoms of the plants, the first tree to loose all it's leaves was the Black Madeira followed by Celeste. I hope I am doing it right, I have always stored figs under lights before, but I don't have space for 20 under lights. I was planning to leave them out for another couple weeks as saturday we are schedualed to get 2 degrees (celcius) and then only a couple days below 5 in the next couple weeks. I figured this would help keep them hardened off a bit before winter storage, anyone else doing this?