For most people, winter is a quiet time in the garden. There is much less to do, even the weather does not invite you to do anything.
Yet winter in particular is a very convenient time for many garden chores. Just think about pruning deciduous trees and shrubs, planting plants from the open ground, taking winter cuttings, clearing, cleaning and maintaining materials and garden tools and, of course, for making new plans for the coming garden year.
Keep in mind that your winter garden chores may disturb animals and insects. After all, they have already found shelter in your garden, or a place to hibernate, or take advantage of the food still available.
As long as the ground is not frozen, deciduous trees and shrubs, rooted plants (plants with bare roots) and plants with root balls can be planted. It is important that these plants (especially rooted plants) do not dry out. Plant them as soon as possible after purchase. Always water generously when planting, even in winter. Not only will this prevent dehydration, but the soil around the new plant will sink in better.
Perennials can also be planted now. Just keep in mind that these may not look as you would expect. The aboveground growth on most perennials has now died off, or is not even visible at all.
Exotic plants, less hardy (evergreen) plants and pond plants are best not planted in winter. Wait until spring, preferably after the worst frost.