You must be thinking about some preventive measures to thwart these Arctic events.
I have a potted Nandina and a potted Magnolia on the front porch. The porch gets plenty of south facing sun and is somewhat protected from northwest winds. They look OK now, but we'll see how they look when things thaw out.
I'm curious about a memory from my past. My sister decorated at Christmas one year a long time ago with some vine. I think she said it came from the mountains. She doesn't remember, but I know I saw it. That ground cover cedar fern you showed in one of your photos reminds me of what I saw. But it was a long vine. Have you ever seen anything like that?