If something can be formal and whimsical, it is the topiary. And so is this wallpaper: Topiary in Leaf Green by Cole and Sons. I think it would look gorgeous in a dinning room as long as it was softened with flowing drapes and curvy furniture. I’d love it in a bathroom, especially with an old-fashioned claw foot tub and black and white tiled floor. And of course in a sunroom or garden room that had lots of plants spilling over tables and off of shelves.  Where would you hang it?