American Hazelnut

A tough, thicket-forming native shrub that grows a genuine edible hazelnut - the wild American cousin of the store-bought filbert - while providing catkins in late winter, good fall color, and abundant food and cover for wildlife.

Easy and adaptable in full sun to part shade and most well-drained soils. The two essentials: plant at least two different plants for cross-pollination, and expect it to sucker into a clump or thicket.

American hazelnut is an undemanding shrub. It grows in full sun to part shade (more sun means more nuts) in most moist, well-drained soils, tolerating clay, a range of pH, and the humidity and cold of much of eastern North America (zones 4-9). Water it while establishing, mulch the roots, and it largely thrives on its own.

Two things are essential to understand. First, hazelnut is wind-pollinated and largely self-incompatible, so you must plant two or more genetically different plants near each other to get nuts - a lone bush will flower but set little or nothing. Second, it naturally suckers into a multi-stemmed clump or thicket 8-15 feet across; embrace that for a productive hedgerow and wildlife planting, or remove suckers to keep a tidier, more open shrub. Plant it in spring or fall, give it a few years (nuts usually begin in years 3-6), and it becomes a long-lived, generous, low-input source of homegrown nuts.

Low-maintenance: water in drought while young, manage suckers for your chosen form, and thin the oldest stems in late winter to renew the clump and keep it bearing well.

Hazelnut needs little care once established. Water through the first couple of years and in serious summer drought (steady moisture improves nut fill), mulch the root zone, and it mostly looks after itself, with few serious pests in most areas. It seldom needs feeding in decent soil.

The main ongoing jobs are renewal pruning and sucker management. Like other multi-stemmed nut and cane shrubs, hazelnut bears best on younger wood, so in late winter thin out the oldest, thickest stems to the ground to spur vigorous new growth, and remove dead or crowded wood; try to prune before the catkins release pollen. Decide how large a clump you want and manage the suckers - let them fill in for a hedgerow, or dig them out (they make free new plants). Beyond that, the real 'care' each year is simply being ready at harvest to beat the wildlife to the nuts.

The main challenge is timing against wildlife: gather nuts as the husks turn brown in late summer to fall - even slightly early - and cure them off the plant, because squirrels and jays will strip a bush at the last moment.

Hazelnuts ripen from late summer into fall, the ragged husks turning from green to brown as the shells inside harden. The nuts come in clusters, and a mature clump can yield several pounds. The defining challenge is not growing them but getting to them before the wildlife does: squirrels, chipmunks, and blue jays covet hazelnuts and routinely strip a bush in a matter of days, often just before peak ripeness.

The practical answer is to harvest promptly and even a little early - pick clusters as the husks begin to brown, before they are fully mature, and let the nuts finish curing off the plant in a dry, airy spot. Check daily as the season peaks, gather any fallen nuts, and consider netting small plants. Once gathered, peel or rub off the husks, dry the nuts in the shell for a couple of weeks to cure, and they are ready to crack. It takes attentiveness, but a homegrown hazelnut harvest - beating the squirrels to a native nut - is a genuine satisfaction.

Cure the nuts in the shell for a couple of weeks, then store them in-shell in a cool dry place for months; shelled or roasted nuts keep longer refrigerated or frozen, as their oils can go rancid at room temperature.

Hazelnuts store well with a little curing. After harvest, remove the husks and dry the nuts in the shell in a single layer in a dry, airy place for one to two weeks to cure - this improves flavor and prevents mold. Cured in-shell nuts keep for several months in a cool, dry, airy spot, which is the simplest storage.

Once shelled, hazelnuts are rich in oils that can eventually go rancid at room temperature, so store shelled or roasted nuts in an airtight container in the refrigerator (a few months) or freezer (up to a year or more) to keep them fresh. Roasting brings out their flavor but shortens shelf life, so roast in small batches as needed. Handled this way - cured in-shell, then shelled and chilled - a fall hazelnut harvest supplies you well into the following year.

Easiest from suckers, layering, or a nursery transplant; nuts grow readily from fresh stratified seed but are slow to bear - and remember you always need two or more plants for a crop.

American hazelnut is easy to propagate. The simplest routes are its abundant suckers - dig rooted suckers from the base in early spring and replant them - or layering (pinning a low stem to the ground until it roots), both giving plants identical to the parent. A nursery transplant (including improved hybrid hazelnuts bred for larger nuts and disease resistance) is the fastest route to bearing plants.

From seed, plant fresh whole nuts in fall (protected from squirrels) so winter provides the needed cold stratification; they germinate in spring but seedlings are variable and slow to bear. Whatever the method, the golden rule stands: plant two or more genetically different plants, since hazelnut needs cross-pollination and a clone or a lone bush will not crop. Between generous suckering, easy layering, and available transplants and hybrids, building a productive hazelnut hedgerow is straightforward and inexpensive.

A genuinely nutritious tree nut - rich in healthy fats, protein, fiber, vitamin E, and minerals - and, ecologically, a keystone wildlife food and cover plant of enormous value to birds and mammals.

Hazelnuts are a nutrient-dense food. Like the European filbert, American hazelnuts are rich in healthy monounsaturated fats, protein, and fiber, along with vitamin E, folate, magnesium, manganese, and copper - a satisfying, storable, calorie-rich native nut that is a real contribution to a home food supply, eaten raw, roasted, or ground into nut butter and flour.

Ecologically, hazelnut is a keystone wildlife plant. Its nutritious nuts feed squirrels, chipmunks, deer, turkeys, blue jays, woodpeckers, and grouse (which is exactly why they are so hard to harvest for yourself), the early catkins provide late-winter pollen, the foliage hosts native caterpillars and other insects, and the dense thicket offers prime cover and nesting. Planting a hazelnut hedgerow feeds you and builds a rich pocket of habitat at the same time - a native shrub that is both a nut crop and a wildlife cornerstone.

Use them like any hazelnut: eat raw, roast to deepen the flavor, and use in baking, nut butters, and savory dishes. Roasting and rubbing off the skins is the classic way to enjoy them.

American hazelnuts are used exactly like the familiar filbert, just in a slightly smaller package. Eaten raw they are sweet and buttery; roasted (in a low oven until fragrant and lightly browned, then rubbed in a towel to remove the papery skins) their flavor deepens into the rich, toasty hazelnut taste prized in confections. From there they go anywhere hazelnuts go - baked goods, cookies, cakes, and breads, ground into hazelnut butter or meal, chopped over salads and roasted vegetables, or made into homemade chocolate-hazelnut spread.

Because the wild nuts are smaller than commercial filberts, they take a bit more shelling for the same volume, but the flavor is fully equal and the satisfaction of homegrown nuts is unmatched. Roast them in small batches for the best flavor and freshness, and store the rest in the shell. Whether you nibble them from the shell in fall or bake them into holiday treats, a hazelnut harvest turns a tough native hedgerow into a genuine culinary reward.

A staple wild food of Indigenous peoples across eastern North America for millennia, and today the native parent stock behind a growing effort to breed hardy, blight-resistant hybrid hazelnuts for northern nut farming.

American hazelnut has fed people in eastern North America for a very long time. Its nuts were an important Indigenous food across its wide range - gathered in quantity, eaten fresh and dried, ground into meal, and stored as a durable, nutritious staple - and early settlers gathered wild hazelnuts too. As a common shrub of woodland edges, fencerows, and prairies, it was a familiar and reliable source of wild nuts.

In the modern era it has taken on a new role in plant breeding. The European hazelnut, though larger-nutted, is vulnerable to eastern filbert blight and to cold, so breeders have crossed it with the tough, blight-tolerant, cold-hardy American species to develop improved hybrid hazelnuts for northern and eastern nut farming and agroforestry. American hazelnut is thus both an ancient wild food and a cornerstone of a promising new perennial nut crop - a native shrub increasingly valued for food security and sustainable agriculture alike.

The classic problems are 'no nuts' (you have only one plant - you need two for pollination) and losing the crop to squirrels and jays (harvest early); eastern filbert blight is the main disease to watch.

No nuts, or very few: by far the most common issue - hazelnut needs cross-pollination, so a single plant (or clones of one) will flower but set almost nothing; plant two or more genetically different plants. Too much shade, or a hard freeze on the very early female flowers, can also cut the crop. Squirrels and jays took everything: the perennial harvest battle - gather nuts early as husks brown, pick daily, net small plants, or plant enough to share. Dead branches, cankers, black warty growths on stems: possible eastern filbert blight, a fungal disease especially damaging to European hazelnuts but which can affect American plants - prune out and destroy infected wood, and choose resistant hybrid varieties in blight-prone areas. Sparse or leggy growth: too much shade - give it more sun for better form and nuts. Suckers spreading: normal - keep them for a hedgerow or dig them out. Most trouble comes down to pollination, wildlife, and, in some regions, blight.

Very cold-hardy and broadly adaptable across eastern and central North America (zones 4-9), tolerant of cold, heat, humidity, and varied soils; its limits are deep shade, extreme heat, and, regionally, eastern filbert blight.

American hazelnut is hardy and adaptable across zones 4-9 and much of eastern and central North America. Zones 4-6: exceptionally cold-hardy - it thrives where European hazelnuts struggle with winter cold, which is a key reason it is used to breed hardy hybrids for northern nut growing. Zones 6-8: its broad heartland, handling the heat and humidity of the East and Southeast better than the European species, and cropping well with enough sun. Warm South (zones 8-9): it grows in the cooler, moister parts and at elevation, though intense heat and humidity are less ideal and can favor disease.

Its key regional limit is eastern filbert blight, a fungal disease that is severe on European hazelnuts and can affect Americans in some areas - where blight is a concern, choose resistant hybrid varieties. Otherwise, its main cultural limits are deep shade (thin growth and poor nut set) rather than climate. Tough, hardy, and widely adaptable, American hazelnut is one of the most dependable native nut plants across a very wide swath of the continent.