Dwarf Iris reticulata bulbs are small miracles of hardiness, coming up in freezing cold conditions and displaying distinctly unwintery deep blues and purples. They can also be forced in bowls for a few days of intense colours and unusual markings in January. In Winter Landscape (Scottish Gallery, exhibited 2014) Winifred Nicholson clearly applied her personal theories of colour, allowing it plenty of "area [and] space".