Preparing your landscape for winter began with proper planting and continued with year-round support. Healthy plants are better equipped to fend off the stresses of winter. But there are specific tasks that can be critical to improve survival and keep your landscape in good shape. Efforts we make at this time may not seem as enjoyable as gardening at other times of the year, but they do ensure a rewarding spring. Here are 12 essential activities for a successful winter.