Hazelnut leaves are a great source of food for wildlife, including several species of butterfly. Once mature, nuts will drop to the ground for harvest and require a drying period before consuming.
Kernels are eaten raw, roasted, or ground into paste. Filbert/Hazelnuts contain significant amounts of protein, B-vitamins, and other minerals. Hazelnuts are found in supermarkets, usually around the holidays, but you can enjoy these nuts from your own trees starting in early fall — adding to the benefits of growing your own!