Believe it or not, snow has a protective quality for perennials, bulbs, shrubs and other plants as it shields your plant life from the alternate freezing and thawing cycles of winter. Snow is like nature’s blanket.
However, even if you don’t have snow to keep your plants warm, you can use straw or pine branches to keep your exposed greenery warm. As mentioned in other posts, keep lone-standing plants away from wind or other extreme elements.
For more ways snow can be useful, visit this link.