Thread resurrection time.
About 15 years ago we bought a real rooted Christmas tree in a pot and once Christmas was over it went outside and we planted it in the garden within a bigger pot with the idea of bringing it in every Christmas, I can only remember doing it once and it looked very sad so when it went back outside we removed it from the pot and planted it in the garden the root ball was very minimal and it didn't really do a lot of growing for the first few years but now I would say the top is level with my office window.
Today there is someone due to cut off the top section ie from fence height or just below and they are going to use it as there family Christmas tree and the rest is being used to make wreaths .
It had to be chopped or dug up as the lower branches overhang the grass and has killed the grass and also it moves quite a bit in the wind so don't want to risk it being blown down and causing a lot of damage.
Once the top half has gone our plan is to trim the branches back that overhang the lawn and add a bird table or small feeding station to the top and re instate the hog house that sits between the trunk and the fence post.
It will be sad to see it gone but in reality we should have planted it about 10 foot further down the garden so it had more space and less chance of doing any damage.