I must have had Christmas on my mind even to entertain the idea for a moment. Well, how could it be mistletoe, growing out of the brick arch just north of Peterborough? It looked the part at first sight: a spherical shrub, branching down as well as up, but it was our old friend Buddleia, beyond easy control above a railway track.
So what will take over the world when humans are gone? Buddleia, brambles, birch, briars? Rats, foxes, jackdaws, gulls, magpies? We’ll never know!