Pruning fruit trees is one of those jobs that intimidates beginners — the fear of cutting the wrong branch and killing the tree is real. But the truth is that most fruit trees are incredibly forgiving, and even a mediocre prune is better than no prune at all. A well-pruned tree produces bigger, healthier fruit, lets light and air into the canopy, and is far less prone to disease.
When to Prune
Timing depends on the type of fruit tree. Get this wrong and you risk removing next year’s fruit buds or leaving the tree vulnerable to disease:
| Tree Type | Prune When | Why |
|---|---|---|
| Apple | November–February (dormant) | Wounds heal slowly but no disease risk when dormant |
| Pear | November–February (dormant) | Same as apple |
| Plum, cherry, damson | June–August (summer only) | Dormant pruning risks silver leaf disease — a fatal fungal infection |
| Fig | March–April (spring) | After frost risk but before growth starts |
The RHS pruning guide is the definitive UK reference for fruit tree pruning timing and technique.
The Three Ds: Where to Start
Every pruning session starts the same way — remove the three Ds:
- Dead wood — any branches that are dry, brittle, or show no buds. Cut back to healthy wood
- Diseased wood — canker, mildew-covered shoots, or any branch showing signs of infection. Cut well below the diseased area into clean wood
- Damaged wood — broken, rubbing, or crossing branches. Where two branches rub, remove the weaker one
Just removing the three Ds makes a visible improvement and opens up the tree for better air circulation, which reduces fungal disease risk.
Basic Pruning Principles
Open the Centre
For apple and pear trees, the goal is an open goblet shape — imagine a wine glass. You want the centre of the tree open to light and air. Remove any branches growing inward toward the trunk. This lets sunlight reach the ripening fruit and improves air circulation, which reduces scab and mildew.
Cut to an Outward-Facing Bud
When shortening a branch, always cut just above a bud that faces away from the centre of the tree. The new growth will head outward, maintaining the open shape. Cut about 5mm above the bud at a slight angle sloping away from it.
Don’t Remove More Than a Third
As a general rule, never remove more than one-third of the tree’s canopy in a single year. Excessive pruning stimulates vigorous, unproductive ‘water shoots’ (vertical whippy growth) and stresses the tree. If the tree is badly overgrown, spread the renovation over 2–3 years.
Pruning Apple and Pear Trees (Step by Step)
- Start with the three Ds — remove all dead, diseased, and damaged wood
- Remove crossing and rubbing branches — where two branches cross, remove the weaker or less well-positioned one
- Remove inward-growing branches — anything heading toward the centre of the tree gets cut back to the trunk or a main branch
- Thin overcrowded spurs — fruiting spurs (the stubby, knobbly growths on older branches) produce fruit, but overcrowded spurs produce small, poor-quality fruit. Thin clusters by removing the weakest
- Reduce height if needed — cut the tallest branches back to a strong outward-facing side branch. This lowers the tree for easier picking and keeps the canopy manageable
- Step back and assess — look at the overall shape. You want a balanced, open framework with no major gaps or heavy sides
Pruning Stone Fruit Trees (Plums, Cherries)
Stone fruit trees are pruned differently because of the risk of silver leaf disease, which enters through wounds and is spread by airborne spores during the wet months. Always prune in summer (June–August) when the tree is in active growth and can heal wounds quickly.
The approach is simpler than apple/pear pruning:
- Remove the three Ds (dead, diseased, damaged)
- Remove crossing branches
- Keep the centre reasonably open
- Don’t over-prune — stone fruit trees need less intervention than apples
If you suspect silver leaf (silvery sheen on leaves, dark staining inside cut branches), contact your local RHS advisor. Severely affected trees may need to be removed to prevent spread.
Tools You’ll Need
- Secateurs — for branches up to 20mm diameter. Bypass secateurs (scissor-action) give cleaner cuts than anvil types
- Loppers — for branches 20–40mm. The long handles give leverage for thicker wood
- Pruning saw — for branches over 40mm. A folding pruning saw is convenient and safe
- Disinfectant — clean tools between trees with methylated spirit or a diluted bleach solution to prevent spreading disease
Sharp tools are essential. A clean cut heals quickly; a ragged, crushed cut from blunt secateurs invites infection. The Felco secateur range is the gold standard, but any quality bypass secateur with replaceable blades will serve you well.
Common Pruning Mistakes
- Pruning stone fruit in winter — the number one mistake. Silver leaf disease can kill the tree
- Leaving stubs — always cut back to a bud, branch junction, or the trunk. Stubs die back and become entry points for disease
- Topping the tree — cutting all the branches to the same height produces a mass of unproductive water shoots. Reduce height gradually by cutting back to strong side branches
- Not pruning at all — an unpruned tree becomes overcrowded, produces small fruit, and is more susceptible to disease. Even a light annual prune makes a big difference
- Using blunt or dirty tools — clean, sharp cuts heal fastest
What About Mature, Neglected Trees?
If you’ve inherited a tree that hasn’t been pruned for years, don’t try to fix it in one go. Spread the renovation over three years: year one, remove the three Ds and the worst crossing branches. Year two, open the centre and reduce height. Year three, refine the shape and thin spurs. This gradual approach prevents shock to the tree and avoids the explosion of water shoots that heavy one-year pruning causes.
