Winter in North America is typically an uneventful time of year for plants, when growing slows or stops and when most plants go dormant. Because of that, average winter weather has very little negative impact on a landscape’s health. Extreme winter weather anomalies, however, can do some serious damage. Heavier than average precipitation, significant and sudden drops in temperature, longer than normal durations of freezing temperatures and winds—these occurrences can injure, if not gravely harm, our valued plants.