Survivors

They may look a bit dishevelled, a bit chewed, and a bit brown in parts, but they're still hanging in there in the front garden.  They survived a heavy frost and a light dusting of snow on top of frozen rain last night, and they've only had a high of 2.4 degrees today and it's now minus 0.5 and falling.  All the others have long since given up the ghost but these seem to be the toughies.  I wonder how long they will last?