Precisely as with us, Dave. Our wedding anniversary is on the 18th so we have it up by then. ;-) We have a real tree, generally a Nordmann fir that we collect fresh from our local Christmas tree farm. More often than not we traipse through the mud to find a nice tree then wait for the chainsaw chap. We have to get it early if we want a decent specimen, so I get it home, cut the bottom off and keep it in a bucket of water in a cold outbuilding until the 17th. It comes down on Twelfth Night. We squabble about whether that means the 5th or 6th.