When should I prune my cherry tree?
Written by
Michael Sullivan
Reviewed by
Prof. Martin Thorne, Ph.D.The ideal time to prune cherry trees is in late winter, just before the beginning of spring growth. Since a dormant tree heals faster, and there is less chance of disease affecting a dormant tree. I have found mid-February to be a good time in zones 5-7. Do not prune in the fall or put them in jeopardy of frost cracks, as pests will move in. Remove the dead branches first and then thin out crowded areas to allow more light to get in.
Timing and Technique
- Late winter: Prune when temps stay above 20°F (-6°C).
- Cut ¼ inch above buds at a 45° angle.
- Thin 15-20% of canopy yearly to prevent overcrowding.
Tool Care
- Use bypass pruners for clean cuts.
- Disinfect tools with 70% alcohol between trees.
- Sharpen blades monthly during peak pruning season.
Do not prune during the active growing season in the spring or summer because sap will attract borers. My "Bing" cherry showed a dieback after I pruned during the summer. Remove water sprouts and branches that grow toward the center of the canopy. Seal any large cuts with pruning paint to protect against pathogens.
Give young trees a central leader framework with a single stem, which gives the trunk strength and balances the fruit load. For established trees, the next consideration is airflow; crowded branched keep moisture and encourage fungal growth. Annual pruning will increase yields by 20-30%, extending the life of the tree as well.
Read the full article: How to Grow Cherry Trees From Seed or Sapling
