We were, slightly to our horror, given a 18" tall lemon tree in a pot for Xmas. I have no experience of citrus in the UK.

It's currently in an unheated, SW facing conservatory. Temp got down to zero in there! It came with 3 lemons, all now picked and is forming one new lemon.

I am mindful of not overwatering it; I have begun feeding it with citrus feed at the recommended intervals (in rainwater) and it seemed to be OK- it's got blossom on it- BUT now the leaves are dulling, in places yellowing a bit, even curling and all in all it doesn't look that happy.

I guess I need to move it outdoors but is it safe to do so with possible frost still forecast or are its chances better out there in a sunny sheltered spot that in a possibly overheating conservatory?

Any advice please!