Fall pruning is one of the most misunderstood jobs in the garden, because the right answer is usually to prune less than you think. Fall is a good time to remove dead, damaged and diseased wood, to tidy plants that have finished flowering, and to cut back perennials that have collapsed, but it is a poor time for heavy pruning of most trees and shrubs. Hard pruning in fall stimulates soft new growth that has no time to harden before frost, and fresh cuts heal slowly in cold, wet weather, leaving entry points for disease. The golden rule of fall pruning is simple: take out what is dead, damaged or diseased, and leave the rest until late winter or spring.
That said, fall pruning still matters. A plant with broken branches, crossing stems or diseased wood going into winter will be worse off by spring, and some plants genuinely are pruned in fall. Summer-flowering shrubs that have finished, spent perennials, and fruit that needs thinning all have fall work attached to them. The skill is knowing which plant belongs in which group, and this guide works through the groups one by one. When in doubt about a specific plant, use our pruning calendar to check its window, and check your local extension service for advice on plants grown in your area.
The fall pruning rule: dead, damaged, diseased
The three Ds — dead, damaged and diseased — can be pruned at any time of year, including fall. Dead wood is brittle, snaps rather than bends, and often has no bark or has bark peeling away. Damaged wood includes branches broken by wind or by the weight of fruit, and stems split by storms. Diseased wood shows cankers, oozing, blackened areas or leaves that died while still attached. Remove all three back to healthy wood, cutting just above a healthy bud or side branch, and take the cuttings away rather than leaving them under the plant. Clean your secateurs between cuts when you are removing diseased wood, wiping the blades with a disinfectant or rubbing alcohol, so you do not carry disease from one cut to the next.
Do not put diseased prunings in the compost heap unless the heap runs genuinely hot, since a cool heap will not kill disease organisms and you will spread them when you use the compost. Bag diseased material and dispose of it with household waste where local rules allow, or burn it where that is permitted. Healthy prunings can be composted if chopped small, or chipped for mulch. Our powdery mildew treatment guide explains what to do with diseased material from one of the most common fall diseases.
What to prune in fall
Several groups are genuinely pruned in fall. Perennials that have finished flowering and collapsed into mush, such as hostas and many soft-stemmed plants, can be cut back to ground level once frost has blackened the foliage, which also removes hiding places for slugs and snails. See our slugs and snails control guide for why that matters. Summer-flowering shrubs that flower on new wood can be lightly tidied in fall, though heavy work is better left to late winter. Raspberry canes that fruited in summer are cut out at ground level in fall, while autumn-fruiting varieties are cut down in late winter. Roses benefit from a light fall tidy: shorten very long stems that would whip about in winter wind and rock the plant loose, but save the main prune for spring — see growing roses for rose care through the year.
Fruit trees need only light fall work: remove dead wood, water shoots and any branches that are crossing or rubbing. The main shaping prune of apples, pears and other fruit trees happens in late winter while they are dormant, which is covered in our winter pruning guide. Grapes and other vines are also left until dormancy. Lawns do not need pruning, but the garden as a whole benefits from a fall tidy, covered in our fall garden cleanup guide.
What NOT to prune in fall
Do not heavily prune spring-flowering shrubs in fall, because their flower buds are already formed and you would be cutting off next spring's flowers. Lilac, forsythia, rhododendron, azalea, viburnum and mock orange all fall into this group: they are pruned just after flowering in late spring or early summer, not in fall. Do not prune stone fruit such as cherries, plums and peaches in fall or 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, growing peaches and growing pears give crop-specific timing.
Do not shear hedges hard in fall, since the soft regrowth will be damaged by frost and the hedge will look ragged all winter. A light trim to remove straggly growth is fine, but heavy shaping waits until spring. Do not prune evergreens hard in fall either, and do not top trees — cutting the top off a tree does not make it safe, it makes it weak, with a flush of weak shoots that are more likely to break. Finally, do not prune tender plants such as lavender hard in fall; a light trim after flowering is enough, and heavy cutting risks killing the plant. See growing lavender for its pruning needs.
How to prune properly in fall
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, not a hacked ball.
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. Keep cuts small where possible: several small cuts are better than one large wound. If a branch is large, 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. Stack prunings as you go and clear them at the end of the session, since piles of cuttings left in the garden harbour pests over winter.
Fall pruning by plant type
Roses get a light fall trim: shorten long, wind-rocked stems by about a third, remove dead or diseased wood, and clear fallen leaves from around the base, since rose leaves can carry disease over winter. Do not strip all the leaves off, and save the hard prune for spring when new growth shows you what is alive. Fruit trees get dead wood removal and a light tidy, with the main prune in late winter. Ornamental trees need almost nothing in fall beyond dead wood, and young trees may need staking checked rather than pruning. Shrubs that flower in summer can be tidied, while spring-flowering shrubs are left alone. Perennials are cut back once frost has finished them, except for those with attractive seed heads or winter structure, such as ornamental grasses and sedums, which are better left standing until spring for wildlife and winter interest.
Herbs have their own fall pruning rules. Tender herbs such as basil are finished by frost and can be pulled up, while woody herbs such as rosemary, thyme and sage should only be lightly trimmed in fall, since hard cutting into old wood can kill them. See growing rosemary, growing thyme and growing sage for each herb's needs, and our fall herb care guide for the full fall herb routine. Grasses are generally left standing through winter and cut back in spring, since their foliage protects the crown from frost and provides shelter for wildlife.
After pruning: what to do next
After pruning, clear all cuttings, fallen leaves and debris from around the plant, since debris harbours pests and disease over winter. Mulch around the base of pruned shrubs and trees, keeping mulch a few inches from the stem, to protect roots from freeze-thaw cycles — our fall mulching guide and mulch types guides cover materials and depths. Do not feed pruned plants with strong fertiliser in fall, since feeding pushes soft growth that frost will damage; our fall fertilizing guide explains why. Water if the weather is dry, since plants still need moisture to heal and root before winter, and see our fall watering guide for how much. Finally, note what you pruned and when, so next year's pruning plan starts from a record rather than a guess, and check your local extension service if a plant reacted badly to fall pruning.
Frequently asked questions
Should I prune in fall?
Lightly, yes: remove dead, damaged and diseased wood, tidy spent perennials, and shorten wind-rocked rose stems. Save heavy pruning of most trees and shrubs for late winter or spring, when cuts heal faster and you can see what is alive.
What should I never prune in fall?
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. Heavy hedge shearing and topping trees are also jobs to avoid in fall.
When is the best time to prune fruit trees?
Late winter, while the tree is dormant but before growth starts. Fall work is limited to removing dead, damaged or diseased wood and light tidying. See our winter pruning guide for the dormant-season method.
Should I cut back perennials in fall?
Cut back perennials that have collapsed after frost, such as hostas, to remove slug hiding places and diseased foliage. Leave ornamental grasses and plants with attractive seed heads standing until spring for structure and wildlife.
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 about a specific plant, check your local extension service.