North America Non-native Plant

Siberian Hazelnut

Botanical name: Corylus heterophylla

USDA symbol: COHE12

Life cycle: perennial

Habit: shrub

Native status: Non-native, reproduces and persists in the wild in the lower 48 states  

Siberian Hazelnut: An Asian Import Worth Considering for Your Garden If you’re looking to add a unique shrub to your landscape that offers both ornamental beauty and edible rewards, the Siberian hazelnut (Corylus heterophylla) might catch your attention. This multi-stemmed woody plant brings a touch of Northeast Asian charm to ...

Siberian Hazelnut: An Asian Import Worth Considering for Your Garden

If you’re looking to add a unique shrub to your landscape that offers both ornamental beauty and edible rewards, the Siberian hazelnut (Corylus heterophylla) might catch your attention. This multi-stemmed woody plant brings a touch of Northeast Asian charm to American gardens, though it’s worth understanding what you’re getting into before planting.

What Exactly Is Siberian Hazelnut?

Siberian hazelnut is a perennial shrub that typically grows as a multi-stemmed woody plant, usually staying under 13-16 feet in height. As its common name suggests, this isn’t a native North American species – it hails from the forests of China, Korea, Russia, and Mongolia. Currently, it’s been documented growing wild in Connecticut, where it has established itself and reproduces without human intervention.

The Appeal Factor: Why Gardeners Choose This Shrub

There’s something undeniably charming about Siberian hazelnut’s appearance and function. Here’s what draws gardeners to this Asian import:

  • Heart-shaped, serrated leaves that create attractive foliage throughout the growing season
  • Dangling catkins in early spring that add visual interest before most plants wake up
  • Edible nuts that ripen in fall – though don’t expect a huge harvest
  • Multi-season interest with spring flowers, summer foliage, and autumn nuts

Garden Role and Design Potential

Siberian hazelnut works well as an ornamental shrub in several landscape settings. It’s particularly suited for woodland gardens where its naturalistic growth habit feels at home, and it can play a supporting role in edible landscaping projects. The shrub also provides some wildlife habitat, especially when those early spring catkins offer pollen to hungry bees emerging from winter.

This plant thrives in naturalistic landscapes where a slightly wild, unmanicured look is desired. It’s not the best choice for formal gardens or spaces requiring precise, geometric shapes.

Growing Conditions and Care

The good news is that Siberian hazelnut isn’t particularly fussy about its growing conditions. Here’s what it prefers:

  • Well-drained soil (it’s not picky about soil type)
  • Partial shade to full sun exposure
  • Moderate moisture levels – not too wet, not too dry
  • USDA hardiness zones 3-7

Planting and Care Tips

Getting your Siberian hazelnut established is relatively straightforward:

  • Plant in fall or spring when temperatures are moderate
  • Dig a hole as deep as the root ball and twice as wide
  • Apply a 2-3 inch layer of mulch around the base, keeping it away from the stem
  • Water regularly during the first growing season to help establish roots
  • Minimal pruning needed – just remove dead or damaged branches

The Native Alternative Consideration

While Siberian hazelnut isn’t classified as invasive, it’s worth considering native hazelnut species that can provide similar benefits while supporting local ecosystems. American hazelnut (Corylus americana) and beaked hazelnut (Corylus cornuta) are excellent native alternatives that offer comparable ornamental value, better wildlife support, and nuts that local wildlife have co-evolved to utilize.

Should You Plant Siberian Hazelnut?

The decision ultimately depends on your gardening goals and philosophy. Siberian hazelnut can be a perfectly acceptable addition to your landscape if you appreciate its unique characteristics and are committed to responsible gardening practices. However, if supporting native ecosystems is a priority, you might find that native hazelnut species better align with your values while offering similar aesthetic and functional benefits.

Whatever you choose, you’ll be adding a member of the hazelnut family that brings multi-season interest and a connection to the broader world of woody plants that have sustained both people and wildlife for millennia.

Siberian Hazelnut

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Hamamelididae

Order

Fagales

Family

Betulaceae Gray - Birch family

Genus

Corylus L. - hazelnut

Species

Corylus heterophylla Fisch. ex Trautv. - Siberian hazelnut

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA