Quick update, if anyone is interested?
I took them inside and they’ve come back to life and are growing pretty vigorously now, which is a relief. I suppose it was quite obvious really that it was too cold, but I think I’d expected them to die quite quickly if that was the case.
Interesting to learn then that (providing you don’t have any other issues), the cold keeps plants in a sort of stasis. Those storing cuttings have already mentioned here that this can be useful.
I will update this thread with how they are doing, incase anyone else has the same problem.
I hope this added stress has only made them more resilient rather than made them herm or anything but I guess it will be a while before I find that out.
Gonna give them a few weeks to bulk up before I flip and then we will see how they get on.