Monthly Fertilizer Schedule
Click on any month to see detailed fertilization instructions
January
DormantFebruary
March
April
May
June
July
NoneAugust
September
October
November
DormantDecember
DormantFertilizer Amount Calculator
Calculate the right amount of fertilizer for your container size and tree age
Nutrient Deficiency Symptoms
Identify symptoms and get correction recommendations
Nitrogen (N)
Symptoms: Pale green to yellow leaves, reduced growth, smaller fruit
Phosphorus (P)
Symptoms: Dark green leaves with purple tint, poor root development
Potassium (K)
Symptoms: Leaf margins turn yellow then brown, fruit lacks flavor
Calcium (Ca)
Symptoms: Bitter pit in fruit, corky spots, poor storage quality
Magnesium (Mg)
Symptoms: Yellowing between leaf veins while veins stay green
Iron (Fe)
Symptoms: Yellowing between leaf veins, especially in new growth
Zinc (Zn)
Symptoms: Small leaves with rosette pattern, reduced fruit set
Boron (B)
Symptoms: Distorted new growth, internal cork in fruit
Recommended Fertilizer Products
Categorized list of products with application notes
Primary NPK Fertilizers
- 10-10-10 balanced fertilizer
- 12-4-8 fruit tree fertilizer
- 3-5-10 fruit ripening formula
Application: Apply in morning or evening, water in thoroughly after application
Slow Release Fertilizers
- Osmocote Plus 15-9-12 (8-9 month)
- Nutricote Total 18-6-8
- Florikan controlled release for fruit trees
Application: Apply once in early spring and once in late summer, lightly scratch into top 1 inch of soil
Calcium Supplements
- Calcium nitrate (15.5-0-0 with 19% Ca)
- YaraTera Calcinit
- Liquid calcium chelate
Application: Apply as foliar spray in early morning or evening, avoid spraying during hot parts of day
Micronutrients
- Solubor (for boron)
- Zinc EDTA
- Complete chelated micronutrient mix
Application: Apply as preventative before deficiency symptoms appear, spray foliage to slight drip
Iron Supplements
- Sequestrene 138 Fe chelate
- Ferrous sulfate
- Liquid chelated iron
Application: Apply when new growth appears yellow between veins, water in thoroughly
Organic Options
- Fish emulsion
- Composted manure
- Worm castings
- Rock dust
Application: Apply monthly at half strength during growing season, water before application
Foliar Sprays
- Maxicrop liquid seaweed
- Fish emulsion + seaweed blend
- Fulvic acid with trace elements
Application: Apply early morning or evening, ensure complete coverage of foliage, including undersides
Fertilizer Application Tracker
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