Deciduous shrub or small tree widely cultivated in temperate regions for confectionery-grade nuts. Turkey produces over 70% of the world supply. Key ingredient in chocolate products.
Best soil types: loam, silt loam, well-drained
pH range: 5.5 - 7.5 (optimal: 6.5)
Drainage: good
Use to identify issues early and prevent crop losses.
Hazelnuts bloom in mid-winter (January-February) on bare branches; cold but frost-free winters are ideal for pollination success.
Plant multiple pollinizer varieties — hazelnuts have a unique incompatibility system and specific varieties must be matched for successful pollination.
Manage suckers aggressively; hazelnuts naturally grow as multi-stemmed shrubs, but commercial orchards train to single-trunk tree form for mechanized harvest.
Hazelnut typically takes 1460 days from planting to harvest. Seeds germinate in about 90 days. The best planting season is fall, winter.
Hazelnut grows best in loam, silt loam, well-drained soil with a pH of 5.5-7.5. Good drainage is required.
Hazelnut grows best at 12-25°C. Frost tolerance: high. Heat tolerance: low.
Hazelnut yields approximately 2,500 kg in-shell/hectare under good conditions.
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