Winter Losses/Spring Glory

Basically anyone growing roses in zone 5 knows about loss due to a harsh winter. Normally I winterize all my roses in late November or early December by shovelling about 6-8 inches of mulch on each one. Last Fall, however, I never did complete this chore. I am amazingly surprised that most of my roses came through with flying colors! This is probably due to the fact that we had a decent snowcover during the coldest days and nights this year. Snow is actually an insulator. A few floribundas did not fare well....I do not see signs of life from Marmalade Skies, Coffee Country, or Champagne Cocktail. Oh well, that's what my pot ghetto is for! Replacements!