1. Don’t cut down dead stalks of purple coneflower, black-eyed Susans, sunflowers, and other plants whose seeds or berries feed birds through the winter.
2. Leave logs, brush piles, or dead groundcover for beneficial insects such as spiders, solitary bees, lady beetles, and other beetles to overwinter in.
3. Hold your planting of magnolias, birches, firs, hemlocks, ginkgos, and ornamental pears until spring. They root slowly and may not survive the winter.
4. Don’t put your leaves out with the trash. Either bag them and let them break down over the winter, or go over them with the lawnmower and rake the shreddings into your flower borders.