From little acorn's or twigs grow!

This tree is (or was) in my mother's back garden. It was nothing but a twig when I planted it as an early teenager. (i.e. just after the end of the last ice age) It has now been deemed a hazard to low flying aircraft and to was due to be felled today. I have not rung to check if there was a stay of execution (or not) so it exists (or not) in my imagination like Schrodinger's Cat (or possibly not).