During the cold, frost and freezing months of winter grass goes into a dormant stage. It stops growing and relies on the starch stored in its root system to survive. While the grass may appear dead and need little attention it also is the time when your lawn is the most vulnerable to damage. When the grass blades freeze they become brittle. The grass blades can snap off like broken sticks when walked upon. This is not harmful if only the top of the grass is snapped but unfortunately when...