Winter is the main pruning season. Trees, shrubs, roses and fruit are dormant, their leaves are gone, and you can see the structure of the plant clearly for the first time all year. Cuts made in winter heal as growth resumes in spring, disease pressure is low in cold weather, and the plant has months to recover before it needs to flower or fruit. For most woody plants, late winter — while the plant is still dormant but before growth starts — is the best time to prune, and this guide explains how to do it well.
The winter pruning routine is: look, plan, cut, clear. Look at the plant and see its shape. Plan which branches to remove and which to keep. Cut cleanly, in the right place, with sharp tools. Clear the prunings and check the plant again. Do not rush, and do not remove more than a quarter of the plant in one year, since heavy pruning shocks the plant and pushes a flush of weak growth. If you are unsure about pruning a particular plant, use our pruning calendar to check its window, and check your local extension service for advice on plants grown in your area.
Why prune in winter
Pruning in winter works because the plant is dormant. With no leaves to support, the plant can put its energy into healing cuts and growing new shoots in spring, rather than into keeping leaves alive while its branches are cut. The bare structure makes it easy to see crossing branches, dead wood, and the overall shape, which is hard to judge when the plant is in leaf. Disease organisms are less active in cold weather, so fresh cuts are less likely to be infected, and there are no nesting birds to disturb, which is an important consideration in spring. Our fall pruning guide explains why heavy pruning is avoided in fall, and why winter is the season to do it instead.
Winter pruning also shapes the plant for the year ahead. Removing crossing and crowded branches lets light and air into the centre, which reduces disease and improves fruiting and flowering. Shortening long stems encourages bushy growth, and removing old wood encourages new growth from the base. A plant pruned well in winter looks sparse at the time, which worries many gardeners, but it will grow back strongly in spring, and the apparent severity is part of why winter pruning works so well.
What to prune in winter
Fruit trees are the main winter pruning job. Apples, pears and other fruit trees are pruned in late winter while dormant, removing dead, diseased and crossing wood, opening the centre to light and air, and shortening long leaders to keep the tree at a manageable height. Our guides to growing apples and growing pears cover fruit tree care, and our fall fruit care guide covers the light fall work that comes before the winter prune. Roses are pruned in late winter or early spring, once the worst frosts are over but before new growth starts, cutting back to healthy outward-facing buds and removing dead and weak wood — see growing roses for rose pruning.
Summer-flowering shrubs that flower on new wood, such as buddleia, are pruned hard in late winter, since they will flower on the growth they make in spring. Deciduous shrubs and trees generally can be pruned in winter, and ornamental grasses that were left standing over winter are cut back in late winter before new growth starts. Grapes are pruned in winter while dormant, and raspberries that fruit in autumn are cut down to ground level in late winter. The zone 5 winter gardening and zone 8 winter gardening guides give zone-specific winter timing.
What NOT to prune in winter
Do not prune spring-flowering shrubs in winter, since their flower buds are already formed and you would cut off the spring flowers. Lilac, forsythia, rhododendron, azalea, viburnum and mock orange are pruned just after flowering in late spring or early summer, not in winter. Do not prune stone fruit such as cherries, plums and peaches in winter in wet climates, since fresh cuts are vulnerable to disease in cold, damp weather; they are pruned in spring or summer instead. Our guides to growing cherries and growing peaches give crop-specific timing.
Do not prune evergreens hard in winter, and do not prune tender plants such as lavender hard in winter, since they need their foliage to protect them from cold and they should only be lightly trimmed after flowering. See growing lavender for its pruning needs. Do not prune in freezing weather, since frozen wood splits and cuts heal badly; wait for a mild, dry day. Do not top trees, which is the practice of cutting the top off a tree to make it shorter — it does not make the tree safe, it makes it weak, with a flush of weak shoots that are more likely to break. And do not prune a plant that is already stressed by drought, disease or damage, since pruning adds stress to a plant that cannot cope with it.
How to prune: clean cuts in the right place
Good pruning is about clean cuts in the right place. Use sharp secateurs for stems up to finger thickness, loppers for thicker branches, and a pruning saw for anything larger. Blunt tools crush stems and leave ragged wounds that heal slowly, so sharpen or replace blades before you start. Make each cut just above an outward-facing bud or side branch, at a slight angle so water runs off the cut surface. Do not leave stubs, which die back and invite disease, and do not cut flush against the trunk, which removes the branch collar that helps the wound heal. Step back often and look at the shape of the plant: the aim is an open structure with air moving through it.
For large branches, use the three-cut method: an undercut a short distance from the trunk, a top cut slightly further out to remove the weight, then a final clean cut at the branch collar, so the bark does not tear down the trunk. Work on a dry day if you can, since wet foliage spreads disease more easily, and wear gloves and eye protection when cutting thorny or woody material. Clean your secateurs between cuts when removing diseased wood, wiping the blades with disinfectant, so you do not carry disease from one cut to the next. Our fall pruning guide covers the same cutting method for fall work.
After pruning: clearing up and aftercare
Clear all prunings after you finish, since piles of cuttings left in the garden harbour pests and disease over winter. Compost healthy prunings if chopped small, or chip them for mulch, but do not compost diseased wood in a cool heap — bag it and dispose of it instead. Our fall composting guide and composting basics guides explain what can be composted and what cannot. Mulch around the base of pruned trees and shrubs, keeping mulch clear of the trunk, to protect roots and hold moisture — see our fall mulching guide and mulch types guides.
Do not feed pruned plants with strong fertiliser in winter, since they are dormant and cannot use it; compost in the soil is enough, and feeding waits until spring when growth resumes. Our winter fertilizing guide explains why winter feeding is usually a mistake. Water if the weather is dry and the ground is not frozen, since plants still need moisture in winter, and see our winter watering guide for the winter rules. Note what you pruned and when, so next winter's pruning starts from a record, and check your local extension service if a plant reacted badly to pruning.
Frequently asked questions
When is the best time to prune in winter?
Late winter, while the plant is still dormant but before growth starts. Avoid pruning in freezing weather, and wait for a mild, dry day so cuts heal well.
What should I prune in winter?
Fruit trees such as apples and pears, roses, summer-flowering shrubs that flower on new wood, grapes, autumn raspberries, and ornamental grasses. Use our pruning calendar to check a specific plant.
What should I never prune in winter?
Spring-flowering shrubs such as lilac and forsythia, which already carry next spring's flower buds, and stone fruit such as cherries and plums in wet climates. Evergreens and lavender should not be pruned hard in winter either.
How much can I prune at once?
No more than about a quarter of the plant in one year. Heavy pruning shocks the plant and pushes a flush of weak growth. If a plant needs major reshaping, spread it over two or three winters.
Do I need to seal pruning cuts?
No, in most cases. Trees seal their own wounds, and wound paints can trap moisture and disease. Make clean cuts in the right place and let the plant heal naturally. If you are unsure, check your local extension service.