When is it appropriate to put the tree up?

For once I already have my small tree in the corner of my living room. However, it is there only because I have just finished knitting it and it is not worth packing it away. It is supposed to have one ornament a day added through advent but I am so pleased with the result that I am going to leave them all on. I might add some lights and fine tinsel later. The rest of my decorations will probably go up a few days before Christmas and come down after any family visits are over, so I definitely will not wait for 12th night.

First Sunday in Advent ( but as Dgc's are here this weekend I might just be tempted!!!)

Weekend before Christmas Day.

For every Christmas decoration put up before December a baby Elf dies ?

Always used to put it up on 18th as DDs birthday was 19th. I still do it around this time.

Christmas trees are appearing in shop windows in our little town. Personally, I wouldn't put up the tree until mid December. When I was a child ours was put up and decorated for my birthday on 11th December. It has become a bit of a tradition.

I saw one today, when out and about.
It was one of those artificial silvery ones, and they'd put it in a sort of cage in the garden.

Christmas Eve