Peach (Prunus persica)
2 sources cited · Verified
The short answer
- Site
- 8+ hours of sun
- Biggest risk
- Coryneum (shot hole) blight
Peaches (Prunus persica) — Deciduous fruit tree.
This crop carries an unusually heavy problem load: 9 diseases and 9 pests are documented for it, so most of the effort in growing it well goes into prevention.
Core growing advice on this page is checked against named horticultural sources — see References.
Diseases
Pests
Quick Facts
At a Glance
Soil & Growing Conditions
Growth Stages
Harvest & Storage
Peach Photo Gallery
References
-
Self-fertile. Site: sunny sheltered spot, ideally fan-trained against a south/south-west wall; frost-prone sites unsuitable since peaches flower early. Soil: deep, fertile, well-drained. Plant 20-30cm from wall angled towards it. Fan size 2m tall x 5m across. Rootstock St Julian A. Planting late autumn-March. Watering: regular for first 2 years, more during fruit swell. Mulch late winter/spring. Pruning: spring/summer only (silver leaf/bacterial canker risk); fan trees pruned spring + after fruiting; free-standing pruned summer after fruiting, remove up to 1/4 old fruited wood. Frost protection: fleece over flowers, remove by day. Hand-pollinate with paintbrush over several sunny days. Thin fruit to 8in apart at hazelnut-walnut size. Harvest July-September, fruit soft near stalk, lifts easily. Pests: fruit aphids, brown scale, spotted wing drosophila, wasps, squirrels, birds. Diseases: bacterial canker, blossom wilt, brown rot, honey fungus, peach leaf curl, silver leaf. Do not grow from supermarket stones.
-
Chilling hours vary by cultivar: ~500hr (Suncrest) to 1000hr (Reliance); match to local climate. Spacing 12-16ft. Soil pH below 8.0, well-drained; amend clay with organic matter/raised beds; chelated iron for alkaline-soil iron deficiency. Irrigation ~30in/season, every 7-14 days, 18-24in deep, drip/soaker not sprinkler. Fertiliser: young trees 1/2 cup 20-0-0 spring (+mid-May if needed), mature trees 1-2 cups 20-0-0 spring, soil test every 3-4yr, stop fertilising after mid-July. Pruning: open-centre/vase system, 4-5 scaffold branches 18-24in above ground at 60-90deg, head back 1-year tree to 28-30in, dormant-season (Feb/March) pruning, keep centre open. Thin to 20-25 fruiting laterals, then 1-3 fruit/lateral at golf-ball size. Pests: peach twig borer (Anarsia lineatella), greater peachtree borer (Synanthedon exitiosa), spider mites, aphids. Diseases: coryneum/shot hole blight, crown/root rot, powdery mildew. Harvest mid-July to September by colour change; store cool up to 2 weeks; yield 1-6 bushels/tree.
2 independent sources are cited for this crop. Where they disagree - soil pH is the clearest case - every figure is preserved rather than averaged into false precision.
Frequently Asked Questions
What problems affect peaches?
Our data links 9 diseases and 9 pests to this crop. See the sections above for each one and how to manage it.
Plan next season before the problems start
Almost everything on this page resolves to your own frost dates rather than the calendar — the last spring frost moves by roughly two months between zone 3 and zone 10. The USA Garden Planner works from your zone so the timing is already decided before the season starts.
Get the USA Garden Planner →Instant PDF download · Written for US growing conditions
Last verified 2026-09-03