They did this last year to, we bought it and it was really good.
Buy the tree on the 2 selected December dates, last year it was the first 2 Saturdays in December. They were sizes from 4ft to 6 or 7 ft last year.
You paid £25 for the tree on the day, at the same time they give you a voucher for £20 to spend in Ikea, obviously, but that's usually valid first few weeks in January.
I won't insult anyone by showing the final amount, technically, paid!!
This is all from memory but I saw the poster in Leeds store at weekend, anyone assist with a picture or link would be good
Not sure if it's online, seems not at the minute. Will keep an eye out and keep updating when I see it again etc.
The link will take you to the tree stand, also very good.
Enjoy, we will/did!
EDIT: these were not tiered when i bought the tree. £25 for a tree of 4-6/7ft and the £20 voucher was given. This was Leeds Ikea, other may differ i guess
1st and 8th December
Last year. The offer continued onto the Sunday and through the week until all trees had sold out. So if you can't make it on Saturday don't worry too much.
Between 6th December & 22nd December. See back page of Xmas catalogue. http://onlinecatalogue.ikea.com/GB/en/Winter_Brochure/