Part of the leaves drop in autumn.

How it looks depends on the severity of the winter. If it's mild, it'll keep it's leaves and/or look good all winter. If it's nasty, the plant will not be prime all year. My strawberry stays green all year, but it is much smaller in the winter. It perks up and is going gangbusters now. Creeping phlox gets a bit ratty towards the end of winter (don't we all?). I've found that the blue flowered one holds better color through the winter than the other colors, for some reason. My St. Johns wort, semi evergreen, my foot! It was brown as toast all winter. My abelia- semi-evergreen- it keeps some leaves.

Does that help?