Methods of Propagation. I have found that the hazelnut tree is clearly out of the ordinary in a horticultural sense. It has a unique and wonderful side to it. The way in which it achieves pollination in the winter and completion of nut set in the spring, is truly interesting.ue to my overwhelming interest in the tasty Corylus nut, you are invited on a journey to learn about the production and propagation of Hazelnut and the trees that produce them. Introduction. Hazelnuts come from the family Corihave. There are about 18 different species of Corylus.