Fertilizer for Cherry Trees: NPK Guide and Application Rates
Cherry trees benefit from annual fertilization but are sensitive to over-feeding. Both sweet and tart cherries respond well to nitrogen applied in early spring before bud break, with rates based on tree age and annual growth. Washington State University Extension recommends targeting 12-24 inches of new shoot growth on young trees and 8-12 inches on mature bearing trees as indicators of proper nutrition.
Quick Reference
What NPK Ratio is Best for Cherry Trees?
The recommended NPK ratio for cherry trees is 10-10-10. A balanced 10-10-10 feeds all three macronutrients equally, which works well when soil tests show no single deficiency.
Cherry Trees NPK needs shift at each growth stage. Balanced formula for root establishment in year one during the Seedling phase, then phosphorus and potassium support bloom and pollination once flowering begins.
NPK by Growth Stage for Cherry Trees
| Growth Stage | NPK Ratio | Notes |
|---|---|---|
| Seedling | 10N 10P 10K N 10% Nitrogen: leaf and stem growth P 10% Phosphorus: roots and flowers K 10% Potassium: health and disease resistance Learn more about NPK | Balanced formula for root establishment in year one |
| Vegetative | 12N 4P 8K N 12% Nitrogen: leaf and stem growth P 4% Phosphorus: roots and flowers K 8% Potassium: health and disease resistance Learn more about NPK | Nitrogen drives canopy development in non-bearing years |
| Flowering | 5N 10P 10K N 5% Nitrogen: leaf and stem growth P 10% Phosphorus: roots and flowers K 10% Potassium: health and disease resistance Learn more about NPK | Phosphorus and potassium support bloom and pollination |
| Fruiting | 5N 10P 10K N 5% Nitrogen: leaf and stem growth P 10% Phosphorus: roots and flowers K 10% Potassium: health and disease resistance Learn more about NPK | Potassium improves fruit firmness and color |
When Should You Fertilize Cherry Trees?
In zone 4, start fertilizing cherry trees in May. In zone 8, begin as early as March. Apply every 8 weeks through the growing season.
Which Zones Can Grow Cherry Trees?
Cherry Trees grows in USDA zones 4 through 8, spanning a 5-zone range.
Fertilization Start by Zone
| Zone | Start Month |
|---|---|
| Zone 4 | May |
| Zone 5 | April |
| Zone 6 | April |
| Zone 7 | March |
| Zone 8 | March |
What Are the Best Fertilizer Products for Cherry Trees?
Look for products with an NPK close to 10-10-10. Espoma Tree-tone is the most popular choice among home gardeners for cherry trees.
- Espoma Tree-tone
- Jobe's Fruit & Citrus
- 12-4-8
Prices vary by retailer and region. Check current pricing before purchasing.
Container and Raised Bed Adjustments for Cherry Trees
Dwarf sweet cherries in 20+ gallon pots; reduce rate by half and use slow-release formula
Common Fertilizing Mistakes with Cherry Trees
- Applying too much nitrogen, which delays fruit maturity and reduces sugar content.
- Using potassium chloride (muriate of potash) instead of potassium sulfate, causing leaf burn.
- Fertilizing ornamental cherry trees on the same schedule as fruiting varieties, leading to excess growth.
- Ignoring calcium deficiency that causes rain-cracking in sweet cherries.
Tips for Fertilizing Cherry Trees
- Apply all fertilizer in early spring before bud break for best utilization.
- Sweet cherries generally need slightly more nitrogen than tart cherries for equivalent fruit size.
- Monitor soil pH and maintain between 6.0-7.0; cherries struggle in acidic or alkaline soils.
- Use potassium sulfate rather than potassium chloride, as cherries are sensitive to chloride.
Organic Fertilizer Alternatives for Cherry Trees
Sources
Source:Washington State University ExtensionLast updated: