Peach Tree Calendar

A peach fruits only on last year’s shoots, so it is pruned every year — otherwise the fruit moves further and further out and the crown fills in. The other two key jobs are thinning the fruit and picking at the right moment. This calendar explains what to do each month and why. Timings are for a temperate climate and follow the condition of the tree and the weather, not only the date. The calendar names no spray products: for plant protection, always follow the product label and the advice of a local agronomist.

At a glance

Pollination: Peaches are self-fertile — no second variety is needed for pollination.
Pruning: Late winter — usually from late February until the start of bloom. Not from October to January.
Where fruit forms: Only on last year’s shoots — which is why the crown is renewed by pruning every year.
Shape: An open vase with 3–4 scaffold branches and an open centre, so light can get in.
Summer pruning: June–July: remove vigorous upright shoots in the centre of the crown.
Thinning: About 4 weeks after full bloom, to about 15 cm (6 in) between fruits.
Harvest: When the background colour under the red blush turns light yellow or cream, with no green.
Main risks: Peach leaf curl, bark canker, brown rot, and frost during bloom.
Leaf curl protection: A preventive spray after leaf fall and/or in late winter, before the buds swell — with a product authorized in your country against peach leaf curl (copper is a common option), as the label says. Once symptoms show, it is too late.

January — Dormancy — no pruning yet

What to do

Do not prune yet: pruning from October to January raises the risk of winter injury and bark canker.
Look the tree over for broken branches and bark wounds.
Clean and sharpen pruners and saw for pruning in late winter.

Why

Early pruning temporarily lowers a peach tree’s cold hardiness — which is why you wait longer than with other fruit trees.

Common mistakes

Pruning in December or January.

February — Late-winter pruning

What to do

If there was leaf curl last year and you did not spray in autumn, spray now, before the buds swell — as the label of a product authorized against peach leaf curl says.
Start pruning no earlier than mid to late February, once hard frosts have passed; prune older trees first, then young ones.
First remove dead, diseased, broken and low-hanging branches.
Remove upright shoots in the centre to keep the vase open.
Keep moderately vigorous fruiting shoots about pencil-thick and 30–45 cm (12–18 in) long, about 10–15 cm (4–6 in) apart; shorten shoots over 60 cm (24 in) by about a third.
Remove very short, weak shoots — they give small fruit.

Why

A peach fruits only on last year’s shoots. Pruning renews the fruiting shoots and lets light into the crown, without which next year’s fruit buds do not form.

Common mistakes

Pruning too lightly — the crown fills in and fruit forms only at the ends.
Pruning so hard that no fruiting shoots are left inside.

Tip: Cut just outside the base of the branch, without leaving a stub and without tearing the bark; wounds do not need painting.

March — Finishing pruning and bloom

What to do

Finish pruning before or at the start of bloom.
Watch the forecast: peaches bloom early and the flowers are damaged by frost.
On a young tree, train 3–4 scaffold branches spaced evenly around the trunk, with wide angles.

Why

A well-shaped open vase is easy to maintain for the whole life of the tree.

Common mistakes

Narrow, sharp crotches that split under a crop.

April — Leaf-out and peach leaf curl

What to do

Check the young leaves about two weeks after leaf-out: reddish, thick, puckered leaves mean leaf curl.
Do not pick off affected leaves — it does not help; the tree usually puts out new, healthy leaves.
If the tree is badly affected, leave less fruit when thinning so it can recover.
Make a note if there was leaf curl — next year’s protection is preventive: after leaf fall and/or in late winter, before the buds swell.

Why

Leaf curl infects early in spring in cool, wet weather. By the time symptoms show, treatment no longer helps.

Common mistakes

Trying to “cure” leaves that have already curled.

May — Fruit thinning

What to do

About 4 weeks after full bloom, thin the fruit by hand to about 15 cm (6 in) apart.
Remove damaged, misshapen and the smallest fruit, and break up clusters.
Do not hold back — a tree that keeps all its fruit gives small peaches and can break its branches.

Why

A peach almost always sets more than it can size. Timely thinning gives larger, sweeter fruit and protects the branches.

Common mistakes

Leaving all the fruit.
Thinning too late.

June — Summer pruning

What to do

Remove vigorous upright shoots in the centre of the crown that shade it; leave the small ones.
Water deeply and infrequently in drought.
Prop up heavily loaded branches.

Why

Light inside the crown in June and July decides how many fruit buds form for next year.

Common mistakes

Pruning the whole tree hard in summer.

July — Picking early varieties

What to do

Finish summer pruning of inner shoots if you did not get to it in June.
Pick early varieties when the background colour under the blush turns light yellow or cream, with no green.
A ripe peach is evenly filled out on both sides of the suture.
Do not pick green fruit — it may never soften.

Why

The red blush is misleading: ripeness shows in the background colour, not in the red.

Common mistakes

Picking by the red colour.
Squeezing fruit to test it — peaches bruise easily.

August — Picking mid- and late-season varieties

What to do

Pick the tree over several times — the fruit does not ripen all at once.
Collect fallen and rotting fruit under the tree.
Remove rotting fruit from the branches.

Why

Rotting fruit spreads brown rot to healthy fruit and into the next season.

Common mistakes

Leaving rotting fruit under the tree and on the branches.

September — Last harvest and clean-up

What to do

Pick late varieties.
Remove mummified fruit left on the branches.
Note which shoots cropped best — you will need it when pruning.

Why

Mummified fruit on the tree carries disease into the next year.

Common mistakes

Leaving dried fruit on the tree.

October — Leaf fall — no pruning

What to do

Do not prune in autumn — pruning from October to January does harm.
After leaf fall is the first window for leaf curl protection: if there was leaf curl this year, spray preventively with a product authorized in your country against peach leaf curl (copper is a common option), exactly as the label says. The second window is late winter, before the buds swell.
Collect fallen leaves and fruit under the tree.
Cut tall grass back from the trunk.

Why

Autumn pruning lowers cold hardiness and raises the risk of bark canker.

Common mistakes

Pruning in autumn “to get it done”.

November — Planning

This month

What to do

If you are planting a new tree, choose a sunny spot with well-drained soil where frost does not settle.
Choose a variety suited to your climate and to late frosts.
If there was leaf curl and you have not sprayed since leaf fall, do it now while the tree is dormant — as the label of a product authorized against peach leaf curl says. If unsure, ask a local agronomist.

Why

The site and the variety decide how often frost will destroy the blossom.

Common mistakes

Planting in a low spot where cold air collects.

December — Season review

What to do

Write down when the peach bloomed, whether there was frost, when leaf curl appeared and when you picked.
Note how much fruit you left when thinning and how large it grew.
Get tools ready for pruning in late winter — but do not prune yet.

Why

Your own notes are the most accurate calendar — they show what really happens in your garden.

Common questions

When should peach trees be pruned?

In late winter — university guides advise no earlier than mid to late February and up to the start of bloom, once hard frosts have passed. Do not prune from October to January: early pruning temporarily lowers the tree’s cold hardiness and raises the risk of winter injury and bark canker.

How much should I prune a peach tree?

More than other fruit trees. On a mature tree, usually about 30–40%, and sometimes up to half, of last year’s growth is removed. Keep moderately vigorous fruiting shoots about pencil-thick and 30–45 cm (12–18 in) long, spaced about 10–15 cm (4–6 in) apart. Remove upright shoots in the centre, dead and diseased branches, and very short, weak shoots.

Why does my peach only fruit at the ends of the branches?

Because it fruits on last year’s shoots. Without yearly pruning, new shoots appear further and further out, while the inside of the crown stays bare and shaded. Annual pruning keeps the fruiting shoots close to the centre and the tree low.

Should I thin peaches?

Yes — a peach almost always sets more fruit than it can size. Thin by hand about 4 weeks after full bloom, leaving fruit about 15 cm (6 in) apart. The fruit grows larger and tastier, and the branches do not break.

How do I know when a peach is ripe?

Look at the background colour — the colour under the red blush, especially around the stem. It should be light yellow or cream, not green. A ripe peach is evenly filled out on both sides of the suture. The red blush is not a reliable sign, and a peach picked green may never soften.

What is peach leaf curl?

A fungal disease: in spring, young leaves turn reddish, thick and puckered, then yellow, get a greyish-white coating and fall. Infection happens early in spring, in cool, wet weather as the leaves unfold; symptoms show about two weeks later. Once the leaves have curled, no treatment will fix them, and picking off affected leaves does not help. The tree usually puts out new, healthy leaves. Protection is preventive: spray after leaf fall and/or in late winter, before the buds swell, with a product authorized in your country against peach leaf curl (copper is a common option), as the label says. If unsure, ask a local agronomist; on a badly affected tree, leave less fruit so it can recover.

Why did my peach bloom but set no fruit?

Most often because of frost or cold during bloom, since peaches flower early. Other causes are pruning so hard that the fruiting shoots were removed, or a variety that does not suit the local climate. Pollination is not the problem: peaches are self-fertile.

Important: This calendar is a general growing frame and does not replace an on-site look or an agronomist's advice. It names no spray products. For crop protection, always follow the product label and the rules in force.

Sources

This calendar was checked against the public references below. It is general background, not a diagnosis of a specific plant.

Last reviewed: 3 November 2026

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