You can plant trees in winter in certain areas. In general, if the ground is diggable in your area you can still plant most types of trees. Learn about which trees to plant in winter, planting by growing zone, and tips for winter planting.
Nature and Winter How Plants and Trees Survive in Winter
How do Trees Survive Winter?
Wisconsin Snowstorm Effects on Trees
Barany in the Garden: Why are the leaves still on the trees?, Home And Garden
The Easiest Way To Protect Young Tree Roots In The Winter
Winter Tree Damage How to Prevent Damage to Your Trees
Read Our Fall Tree Care Checklist for NH & Maine
How Do Trees Survive the Winter? : Virginia Department of Forestry
Late winter is the time to source and plant bare root trees and shrubs
What Are the Common Causes of Winter Damage to Trees?
Deciduous Trees for Winter Interest in the Northern Plains - FineGardening