Cherry care guide: when & how to prune, fertilize and spray
Prunus avium / P. cerasus · USDA zones 4–8
Sweet and tart cherries fruit on long-lived spurs. They're best pruned lightly in dry weather to avoid bacterial canker and silver leaf. Birds are the biggest threat to the crop.
☀️ Sun
Full sun.
💧 Water
Moderate and even; too much water near harvest splits fruit.
🪱 Soil
pH 6.0–7.0. Very well-drained. Avoid wet sites.
How and when to prune cherry
Prune after harvest
When: 10–14 weeks after the last spring frost.
- zones 3–5: about Jul 19 – Aug 16
- zones 6–7: about Jun 24 – Jul 22
- zones 8–10: about May 6 – Jun 3
Cherry wounds heal fastest in warm, dry weather, which greatly reduces bacterial canker and silver leaf infections compared with winter pruning.
- Remove dead, diseased and crossing branches, plus water sprouts.
- Thin crowded branches to let light into the center.
- Shorten overly tall leaders to a lower outward branch to keep cherries within reach.
- Disinfect tools between trees.
Thin young fruit
When: 5–8 weeks after the last spring frost.
- zones 3–5: about Jun 14 – Jul 5
- zones 6–7: about May 20 – Jun 10
- zones 8–10: about Apr 1–22
Trees set far more fruit than they can size up. Thinning gives bigger, better-tasting fruit, prevents broken branches and stops the tree alternating between heavy and empty years.
- Wait until after the natural 'June drop', when fruit is about marble to walnut size.
- Twist or snip off fruit so the survivors are spaced only on heavy-cropping tart cherries; most sweet cherries need no thinning apart along the branch.
- Remove the smallest, damaged or misshapen fruit first.
- It feels wasteful, but you'll harvest about the same weight of much better fruit.
Spraying & disease prevention for cherry
Copper spray after leaf fall
When: 2–5 weeks after the first fall frost.
- zones 3–5: about Oct 15 – Nov 5
- zones 6–7: about Nov 8–29
- zones 8–10: about Dec 15 – Jan 5
Protects leaf scars from bacterial canker infection over winter.
- Spray when about half the leaves have dropped, and again at full leaf drop.
What to use: 🌿 Copper fungicide (e.g. Bonide Captain Jack's Liquid Copper)
Frost & winter protection for cherry
Net against birds
When: 6–8 weeks after the last spring frost.
- zones 3–5: about Jun 21 – Jul 5
- zones 6–7: about May 27 – Jun 10
- zones 8–10: about Apr 8–22
Birds can strip a tree in a day as cherries turn color.
- Drape bird netting over the tree as soon as fruit begins to color, and secure it at the trunk so birds can't get underneath.
Common cherry problems and how to fix them
Bacterial canker
Signs: Oozing amber gum, sunken bark, dead branches.
What to do: Prune only in dry summer weather. Copper spray after leaf fall.
Brown rot
Signs: Rotting blossoms and fruit.
What to do: Sulfur or captan at bloom. Remove mummies.
Spotted wing drosophila
Signs: Soft, collapsing ripe fruit with tiny larvae.
What to do: Pick promptly and completely. Spinosad as fruit colors.
Cherry care FAQ
When should I prune cherry?
Prune after harvest: 10–14 weeks after the last spring frost (around Jun 24 – Jul 22 in zones 6–7). Thin young fruit: 5–8 weeks after the last spring frost (around May 20 – Jun 10 in zones 6–7). Sweet and tart cherries fruit on long-lived spurs. They're best pruned lightly in dry weather to avoid bacterial canker and silver leaf. Birds are the biggest threat to the crop.
What should I spray on cherry?
Copper spray after leaf fall (2–5 weeks after the first fall frost). Products: Copper fungicide (e.g. Bonide Captain Jack's Liquid Copper). Always follow the label.
What soil does cherry need?
Very well-drained. Preferred pH 6.0–7.0. Avoid wet sites.
How much sun and water does cherry need?
Sun: Full sun. Water: Moderate and even; too much water near harvest splits fruit.
What are common cherry problems?
Bacterial canker: Oozing amber gum, sunken bark, dead branches. Prune only in dry summer weather. Copper spray after leaf fall. Brown rot: Rotting blossoms and fruit. Sulfur or captan at bloom. Remove mummies. Spotted wing drosophila: Soft, collapsing ripe fruit with tiny larvae. Pick promptly and completely. Spinosad as fruit colors.
More fruit care guides
Timings are given relative to your average frost dates, with examples for typical US climates. Always read and follow product labels.