HazelbertThe Hazelbert was developed by Fred Ashworth of New York in the 1920s and is a hybrid of the Corylus Americana (American Hazelnut) and Corylus Avellana (European Hazelnut also known as a Filbert) with carefully chosen genetics to promote disease resistance and productivity. Hazelbert seedlings display a range of growth habits and yields; however, these robust plants typically begin producing sweet, oil dense nuts within 3 to 5 years. The nuts measure