Pachyphragma

A monotypic (one species in the genus) evergreen perennial, with heart-shaped leaves. In late winter, early spring, clusters of 4-petalled white flowers, will light up a shady corner. Will gently spread. Native to Turkey and Caucasus, but perfectly hardy in the UK. 

Although evidence is lacking as to the attractiveness of Pachyphragma to insects, it is likely to be sought out by early spring bees, butterflies and bee-flies, in common with many similar relatives in the cabbage family. It is however a very useful ground-cover plant in a shady spot, providing a refuge for all manner of invertebrates, small mammals and amphibians.