Posted: 14/12/2015 at 07:14
He'll be fine outside, even in a very cold winter. He'd be very unhappy indoors - the atmosphere would be too warm and dry and the light levels would be too low.
The best thing to do is to raise the pot off the ground on pot feet that you can buy from a garden centre, or on a couple of bricks until then - being careful not to block the drainage hole in the pot. That way the roots won't get waterlogged. You might want to protect the pot from frost damage by wrapping it in a couple of layers of bubble-wrap - but don't cover the soil in the pot.
If snow collects on your tree brush it off gently to prevent the weight of the snow from bending the branches, and don't water or feed it until the spring.
How big is he and how big is his pot? He might need moving to a bigger pot in the spring. If he does, John Innes No 3 Loam-based compost is the one to use.
Hope that helps.