The original hazelnut. The nut that Nutella is made from. Corylus avellana, the European Hazelnut or Filbert, is the species responsible for virtually the entire global hazelnut industry, the tree whose nuts are roasted, ground, and combined with chocolate in Nutella, pressed into hazelnut oil, and eaten raw, roasted, and processed in every hazelnut product sold anywhere in the world. Native across Europe and western Asia, it has been cultivated for its nuts for at least 9,000 years and harvested from wild populations for far longer. It is a multi-stemmed shrub or small tree that produces the earliest pollen of any woody plant in the temperate garden, its catkins releasing yellow pollen clouds in late winter weeks before any other tree begins to stir, and it bears clusters of nuts enclosed in leafy husks in late summer. If you are looking to buy Hazelnut seeds or grow filbert from seed, this is the nut that has fed more people across more centuries than any other tree nut in European history. Produces the commercial hazelnut eaten worldwide, the nut used in Nutella and virtually all hazelnut food products Earliest-flowering woody plant in the temperate garden, catkins releasing pollen in late winter or early spring Has been cultivated continuously for at least 9,000 years, one of the oldest cultivated nut plants Multi-stemmed form ideal for hedgerow planting, wildlife thickets, and productive garden borders Begins producing nuts within 3 to 5 years from seed, among the fastest-producing nut plants available Things you probably did not know about the Filbert Hazelnut 9,000-year-old hazelnut shells have been found at a single Scottish site in extraordinary quantities. Excavation of a Mesolithic site on the island of Colonsay off the west coast of Scotland uncovered the remains of over 100,000 burned hazelnut shells in a single pit, representing a deliberate mass harvest and processing event dated to approximately 7000 BC. Archaeobotanists believe the entire island's hazelnut crop was harvested by a group that visited specifically for the purpose, representing one of the earliest documented instances of organized plant food production in northwestern Europe. Hazelnuts are one of the few nut crops that can be harvested by hand within reach of the ground. Most commercial nut crops require large trees that are mechanically harvested. Hazelnuts grow on compact multi-stemmed shrubs with nuts at accessible heights, making small-scale hand harvesting practical for home growers. A productive mature clump of three to five stems can produce 5 to 10 pounds of nuts per year, enough for personal use and some surplus, from a planting that takes up less space than a standard fruit tree. The catkins release pollen up to eight weeks before the leaves emerge. Hazelnut catkins develop through fall and winter, fully elongated and ready to release pollen by late January or February in mild years. The tiny female flowers that receive the pollen are inconspicuous red tufts at the branch tips that appear simultaneously with the pollen release and are easily missed by casual observers. The entire pollination event is complete months before the first leaf of spring appears. The wood is exceptionally flexible and has been used for wattle fencing for thousands of years. Hazel stems, particularly young flexible shoots called withies, are the traditional material for wattle, the interwoven panel fencing and wall-building technique used in traditional European construction from prehistoric times through the medieval period. Hazel coppice, the practice of cutting hazel to the ground on a rotation of 7 to 15 years to harvest straight flexible shoots, has been practiced continuously in England and Europe for at least 4,000 years. Growing Details Botanical Name: Corylus avellana Stratification: Required, 60 to 90 days cold moist stratification USDA Zones: 4 to 9 Soil: Well-drained, slightly acidic to neutral, tolerates a range of conditions Light: Full sun to partial shade, best nut production in full sun Height: 8 to 15 feet Spread: 8 to 15 feet, spreading by suckers over time Growth Rate: Moderate to fast, 1 to 2 feet per year Plant two or more for cross-pollination and maximum nut production. In four years you will have hazelnuts. In ten years you will have a productive multi-stemmed grove that requires almost nothing from you to keep producing.
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