Side by side

Hazel or filbert? How to tell them apart

Corylus avellana · Corylus maxima

How to tell them apart – hazel: a short, ragged husk that does not fully enclose the nut, and rounder nuts; filbert: hazel whose nuts are completely enclosed in a long, tubular husk, the purple-leaved form is a well-known garden shrub.

Hazel (Corylus avellana)

Photo: H. Zell, CC BY-SA 3.0 · source

Hazel Corylus avellana

Filbert (Corylus maxima)

Photo: Fritz Geller-Grimm, CC BY-SA 2.5 · source

Filbert Corylus maxima

How do you recognise them?

Hazel
Round, softly hairy leaf with a short pointed tip; yellow catkins in winter, and hazelnuts.
Compared with filbert: a short, ragged husk that does not fully enclose the nut, and rounder nuts.
Filbert
Hazel whose nuts are completely enclosed in a long, tubular husk; the purple-leaved form is a well-known garden shrub.
Hazel and filbert side by side
HazelFilbert
LeavesAlternate, almost round with a short pointed tip, 6–12 cm, double-toothed, softly hairy; heart-shaped base.Alternate, round with a short pointed tip, 8–12 cm, double-toothed and softly hairy; dark reddish-purple in ‘Purpurea’.
FloweringYellow, hanging male catkins as early as January–February; tiny red stigmas of the female flowers (January–March).Yellow, hanging male catkins in February–March; tiny red stigmas of the female flowers (February–March).
FruitHazelnuts in a leafy, ragged husk (September).Elongated nuts (2–2.5 cm), completely enclosed in a tubular husk that is constricted at the tip and extends well beyond the nut, September.
BarkGlossy grey-brown with pale lenticels.Smooth, greyish-brown with pale lenticels.
Shape and heightShrub, 3–8 m, multi-stemmed shrubShrub, 4–6 m, multi-stemmed shrub
SiteSun to shade, any garden soil, normalSun or partial shade, any garden soil, normal
Native to BelgiumYesNo, planted
Good for bees, butterflies and birdsYes, for bees, butterflies and birds–
Poisonous to people and petsNot known to be poisonousNot known to be poisonous
Pruning monthsNovember–MarchNovember–March

What does it mean for your garden?

  • Hazel is native: it feeds more insects and birds than a non-native species. If in doubt, choose this one.

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Identify by feature

All species that look alike

This comparison is compiled from the Bladwijzer species pages.

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