How to Grow American Hazelnut
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American Hazelnut
Corylus americana
shrubAmerican Hazelnut is a native deciduous shrub that produces edible nuts enclosed in leafy husks. It typically grows 3-8 feet tall and spreads via suckers to form dense thickets, making it excellent for wildlife habitat and nut production. The plant is cold-hardy, pest-resistant, and requires minimal maintenance once established.
When should you plant American Hazelnut in your zone?
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Example American Hazelnut timeline · Pittsburgh, PA (Zone 6b)
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Plant American Hazelnut
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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Harvest American Hazelnut
Late summer into fallBefore the first fall frost (≈ Nov 8)
Sample dates for Pittsburgh, PA. Sign up to get exact American Hazelnut dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 3-8, native to eastern North America
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Get my American Hazelnut timeline →Growth Stages
Establishment
Year 1-2Young shrub with sparse branching and developing root system
Water regularly, mulch base, protect from competing weeds, avoid heavy pruning
Vegetative Growth
Year 2-3Vigorous shoot growth, dense foliage, expanding branch structure
Remove dead/crossing branches, thin suckers if needed, maintain shape, ensure good air circulation
Flowering
Late February-MarchMale catkins appear in late winter (drooping, yellow-brown), female flowers are tiny with red stigmas
Plant at least 2 different cultivars for cross-pollination and better nut set, minimal intervention needed
Nut Development
April-AugustSmall green nuts develop inside leafy husks, gradually enlarge and harden
Ensure adequate water during this period, monitor for pests, apply protective netting if squirrels are excessive
Harvest
August-OctoberNuts mature, husks dry and lighten, nuts begin dropping to ground naturally
Collect fallen nuts regularly, remove from husks, dry thoroughly before storage
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Remove and destroy infested nuts, maintain sanitation, encourage beneficial insects, apply kaolin clay in spring if needed
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Spray with strong water stream, use insecticidal soap, encourage natural predators like ladybugs
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Hand-pick in early morning, use beetle traps away from plants, apply neem oil if severe
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Prune infested branches, spray with horticultural oil in dormant season, improve plant vigor
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Prune out tents, apply Bt (Bacillus thuringiensis) spray, encourage birds and parasitic wasps
Uses
Nut harvesting and eating
CulinaryAmerican hazelnut produces sweet, edible nuts smaller than European hazelnuts but with excellent flavor. The nuts can be eaten raw, roasted, or used in baking and confections. [source]
Wildlife habitat and food source
WildlifeThe shrub provides dense cover for birds and small mammals, while nuts serve as essential food for squirrels, chipmunks, and other wildlife. Catkins provide early-season pollen for bees. [source]
Erosion control and windbreak
HouseholdThe spreading root system and dense suckering growth make American hazelnut excellent for stabilizing slopes and preventing erosion. It forms effective hedgerows and wildlife corridors. [source]
Basket weaving and crafts
CraftFlexible hazel branches have historically been used for weaving baskets, fences (hazel hurdles), and other traditional crafts. Young shoots can be harvested for basketry. [source]
Traditional herbal uses
MedicinalVarious parts of hazelnut plants have been used in traditional medicine for circulation support and other purposes, though modern scientific evidence is limited. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Nuts mature in late summer to early fall (August-October). Collect fallen nuts from ground regularly before squirrels and other wildlife consume them. Crush or remove the leafy husk to access the hard shell. Dry nuts in a warm, well-ventilated location for 2-3 weeks until completely dry. Store in cool, dry conditions (32-50°F) for extended shelf life. Crack shells with a nutcracker to extract the sweet kernel.
Fun Facts
- 🌱 American hazelnut is native to eastern North America and was an important food source for Indigenous peoples and early colonists before commercial filberts were introduced.
- 🌱 The plant reproduces through both seeds and underground suckers, which can spread from parent plants to form extensive thickets—a trait that makes it great for habitat restoration but requires management in smaller spaces.
- 🌱 Hazel branches were traditionally used for divining water and minerals, a practice known as dowsing or witching that dates back centuries in European folklore.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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