Where I live our gardens have bushes that I mostly own which divide our gardens, apart from some which creep onto the end of his garden.
He has planted a tree which is over the boundary onto my side.
I feel almost a bit silly to ask him why he has done it as its just on our property. But slightly annoyed that he would do that.
Its something I would never do and would always makes sure anything I would plant would be well within my boundary.
Its also very close to his house if it became a problem in the future and damaged his house would I be liable as its on my land?
I dont know whether to say anything?