I’m confused. Do we mainly grow Corylus avellana or Corylus maxima? – Lane County A: Here in the Pacific Northwest, we grow cultivated varieties of Corylus avellana, the European hazelnut.

Cobnuts are a cultivated hazel nut. Most of those grown in Britain are from the named variety 'Kentish Cob', which was once known as 'Lambert's Filbert' after Mr Lambert of Goudhurst in Kent, an ...

Though C. avellana produces small, round nuts known as cobnuts, the filbert (Corylus maxima) bears larger nuts that ripen earlier in the season. Filberts, which are native to the Balkans ...