This is a top-quality walnut tree that produces large crops of well-flavored nuts. The nuts are easy to crack and are held in a green husk. Walnut ‘Shannon’ prefers free-draining soils and typically starts producing walnuts at around five years of age. While it is self-fertile, it can produce better crops when planted with another walnut cultivar like Walnut ‘Meyric’ or Walnut ‘Wilson’s Wonder’. Walnut is deciduous and native to the region stretching from the Balkans eastward to the Himalayas and southwest China. Learn more about Walnut. Walnut ‘Shannon’ was propagated by Vernon Harrison in New Zealand.