Bought a Christmas tree with a root ball.
Did all the things it should, looked nice, climbable by cat etc.....
Planted the workshy little bugger in a decent sized pot, in some very expensive dirt, watered the bleeding thing regularly but it's slowly going brown at the edges.
Tried threatening it, moved it into a more open place, nice view of the Pennines, but the lazy, feckless, coniferous little sod refuses to thrive.
The last one lasted for four years, no idea what we've done to annoy this one.