Hazelnut (Filbert) History, Cultivation, Nutrition & Health Benefits

Hazelnuts (filberts) have fed humans since Neolithic China (5,000-year fossils). From Saint Philibert's Day harvest traditions to modern Oregon orchards, they're a nut with a story.

Botany & Names

• Corylus avellana (European) – commercial standard, 20 ft trained, 20–25 lb/tree at maturity.
• Corylus americana (American) – cold-hardy to -30°F, shrubby, thicket-forming, Zone 3–9.
• Cross-pollination required: plant two compatible varieties.

History Highlights

• Pliny: Romans gathered wild hazels; believed origin Damascus.
• Prince Nursery (1737, Flushing NY): First US commercial nursery; Washington visited 1789; Lewis & Clark deposited specimens.
• Dr. MacDaniels (Cornell): Pioneered hazelnut research near Ithaca.

Production & Harvest

• Nuts mature late Aug; drop 6 weeks later (Sept).
• Europe: hand-harvest. US (OR/WA): mechanical sweep.
• Global: 75–80% Black Sea (Turkey), 15% Italy/Sicily, 2% US.

Uses & Folklore

• Culinary: cereals, confections, flour, soups, raw, roasted.
• Mystical: divining rods for water, minerals, treasure (cult tradition).

Health Evidence

• FDA: 1.5 oz/day may reduce cardiovascular risk (low-sat-fat diet).
• Boston study: Men eating nuts 2×/wk → 47% lower sudden cardiac death, 30% lower CHD death.
• High polyunsaturated fats, antioxidants, cholesterol-lowering.

Grow Your Own

Space 15–20 ft. Mulch, water, wait 3–4 years. A hazelnut hedge yields nuts, wildlife habitat, and a living link to ancient foodways.