Order at least two varieties for cross pollination. Shipping to Oregon is restricted. The following named varieties are European hazelnuts (Corylus avellana). It is the only species grown commercially. Hazelnuts are also known as filberts. Hazels are propagated as layered trees on their own roots. Self-rooted or layered trees are the equivalent of a grafted tree, but have the advantage of being grown on their own roots. They can be grown as a tree by suppression of suckers, or as a multi-stemmed shrub. Growing hazelnuts as a shrub can make it easier to hand-harvest nuts as soon as they ripen, as they are ripe nearly a month before they drop. This may be necessary where jays and squirrels are common. Self-rooted hazelnuts will begin bearing quickly, often within 2 years. Seedlings will take 3-6 years. Turkish Tree hazels take 8-10 years to bear.