Thanks UKCat,
I've put it in the greenhouse this evening which I've started heating gently at night to between 5C and 10C.
It makes me feel better to know that spikes are not really expected yet.
I've given it a good check over when I moved it as, to be honest, it's tended to get forgotten in it's garden spot. It's had some good new growth over the summer, there are some old looking leaves, but some nice new healthy looking growths.
I think I'll leave it in the greenhouse until any spikes it might decide to give me
are starting to open. I had it in the living room while flowering last year and it seems to cope with that for a short while before I put it out in the spring (I didn't have a greenhouse last year).
Thanks again for the advice