@nataliejohnson, the is also the male Skimmia Japonica Rubella. Plants like Corylus avellana 'Contorta' and Hydrangea quercifolia 'Snow Queen' have intense winter interest. The Hydrangeas, even though they make a good specimen plant, are best massed; allowing sufficient space to reach full potential. I have had Camellias bloom in February but they were well protected from winter winds (as all broad-leaf evergreens should be). BTW, Erica is heath. Heather are spring and summer flowering.
RE: What to Grow In Winter Series, Post #9 Witch Hazel