Macadamia Growing Guide
Subtropical evergreen tree native to Australia producing the world's hardest commercially shelled nut. Premium market nut with high oil content (72-78%) and smooth, buttery flavor.
Growing Conditions
Soil Requirements
Soil Type & pH
Best soil types: volcanic, deep loam, red basaltic
pH range: 5 - 6.5 (optimal: 5.5)
Drainage: good
Nutrient Needs (N-P-K)
Planting Guide
Yield & Economics
Common Pests & Diseases
Common Pests
- macadamia nut borer
- fruit spotting bug
- rats
Common Diseases
- phytophthora root rot
- anthracnose
- trunk canker
Use to identify issues early and prevent crop losses.
Growing Tips
Macadamia trees are shallow-rooted and vulnerable to wind damage; provide windbreaks and avoid exposed sites.
Harvest fallen nuts from the ground regularly (every 2-3 weeks) to minimize quality deterioration and rodent losses.
Trees are sensitive to phosphorus; excessive P application can cause zinc and iron deficiency — soil test before fertilizing.
Frequently Asked Questions
How long does Macadamia take to grow?
Macadamia typically takes 2555 days from planting to harvest. Seeds germinate in about 60 days. The best planting season is spring.
What soil does Macadamia need?
Macadamia grows best in volcanic, deep loam, red basaltic soil with a pH of 5-6.5. Good drainage is required.
What temperature does Macadamia need?
Macadamia grows best at 20-30°C. Frost tolerance: none. Heat tolerance: moderate.
What is the expected yield for Macadamia?
Macadamia yields approximately 3,000 kg nut-in-shell/hectare under good conditions.
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