California Hazelnut

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Other Names:
Beaked Hazelnut, California Hazel, Western Hazelnut, Beaked Filbert
Latin Name:
Corylus cornuta var. californica
Size *

The California Hazelnut (Corylus cornuta var. californica) is our native filbert — a graceful, multi-stemmed shrub with soft, birch-like leaves, dangling ornamental catkins in late winter, and rich, delicious nuts.2, 4

Edible & Medicinal Uses

The small, flavorful hazelnuts can be eaten raw or roasted, blended into nut butter, or ground into a gluten-free flour. They're an excellent source of fiber, manganese, and copper. The nuts are valued as food and the flexible shoots for weaving and tools, and a bark poultice sees traditional medicinal use. (Our native hazel yields smaller crops than the commercial European filbert, and you'll want to beat the squirrels to the harvest.)1, 4

Ornamental Qualities

A charming four-season shrub 6–15 ft tall, California Hazelnut opens the year with long, dangling golden catkins (with tiny ruby-red female flowers) before the leaves, carries soft rounded foliage through summer, and glows golden in fall. It's a graceful screen or hedgerow plant and a classic understory companion beneath Oregon White Oak and California Foothill Pine.1

Environment & Culture

Ecology: Native from British Columbia to California, California Hazelnut grows in moist, shaded woods and forest edges, often near streams. Its winter buds and catkins feed birds, its foliage hosts butterfly and moth larvae, and its nuts feed jays, squirrels, and many mammals.1, 2

Culture: Northwest peoples value hazel as food, medicine, and material — the straight young shoots woven and worked into baskets, traps, and tools — and continue to steward and restore it today. We offer it with respect for that living knowledge and invite support for Indigenous-led restoration through our Charitable Giving page.4

In the Kitchen

Gather the nuts in early fall as the husks brown (ahead of the squirrels), cure them a week or two, then crack and enjoy. Roast them to deepen the flavor, grind them into a silky nut butter, or fold hazelnut meal into cakes and cookies for a rich, native twist. (Growing and harvest details are on the Planting Guide tab.)

Attributes

  • Native Range: British Columbia to California; moist shaded woods1
  • USDA Zones: ~4–83
  • Light: Full sun to full shade (best nuts with some sun)3
  • Water: Moist; appreciates year-round moisture, tolerates dry shade1
  • Soil: Loamy, acid, organic-rich, well-drained; tolerates clay3
  • Habit: Multi-stemmed deciduous shrub, 6–15 ft2
  • Bloom: Dangling catkins, late winter (ornamental)1
  • Edible: Nuts — raw, roasted, nut butter, or flour4

References

  1. CalScape; Native Plants PNW, Corylus cornuta var. californica.
  2. Pojar, J. & MacKinnon, A., Plants of the Pacific Northwest Coast, 2014.
  3. USDA NRCS Plant Fact Sheet, California Hazelnut.
  4. Native Foods Nursery field notes; Moerman, D., Native American Ethnobotany, 1998.

Pot Sizing Guide

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Planting Guide: California Hazelnut (Corylus cornuta var. californica)

Tip: Plant it in moist, part-shaded ground as a graceful screen or understory shrub — give it a little sun for the best nut set, and net or beat the squirrels to the crop.

When Your Plant Arrives

Open the box promptly and lift your plant out gently, holding the pot rather than the stem. Leave it in its biodegradable eco-pot for now — the roots are settled and don’t need disturbing yet. Give it a slow, thorough drink until water runs through the bottom, then set it somewhere bright but sheltered, out of harsh afternoon sun, drying wind, and frost. Let it rest and acclimate there for a few days before planting, so the move from our greenhouse to your garden is a gentle one. If anything doesn’t look right, please contact customer service within 7 days of delivery and we’ll take care of you.

Choosing a Site

Light: Full sun to full shade; some sun improves nutting.

Soil: Loamy, acid, organic-rich, well-drained; tolerates clay but not saturation.

Space: Give it room (a large suckering shrub); plant two different plants near each other for far better nut set, since it is wind-pollinated and sets poorly alone.

Planting Steps

Plant in fall or spring.

If it came in a biodegradable eco-pot, plant it pot and all — the pot is pressed from composted cow manure, so it melts into the soil and gives the young roots their first feed. No need to remove it.

Set at the depth it grew, backfill with compost-enriched soil, firm, water in, and mulch.

Watering & Care

Establishment: Keep moist the first seasons.

After establishment: Appreciates summer moisture; tolerates dry shade with lighter crops.

Pruning: It suckers into a thicket — thin or coppice the oldest stems to renew and keep it in bounds.

Protection

Deer: Browsed — protect when young.

Wildlife: Winter catkins for birds; jays and squirrels take the nuts — net clusters or race them for the crop.

Harvest Basics

Season: Early fall, as the beaked husks turn brown — gather before the squirrels do.

Prep: Cure/dry 1–2 weeks, then crack.

Use: Eat raw or roasted, blend into nut butter, or grind into a gluten-free flour.