These characteristics give the nut a very wide potential production range. Propagation Japanese nurseries use veneer grafting for propagation of chestnut. An Australian nurseryman uses T budding when the little leaves are just beginning to emerge in spring. With chip budding, a large, 2.3-3 cm bud base is used. Some grafters have experienced much difficulty due to root pressure flooding out the grafts.
Irrigation appears to be necessary for quick establishment in the dry summers of western Oregon.
Central leader training appears to be best for strong limb structure. The nuts fall to the ground within about a week after they have become ripe in the hulls. Once fallen, they are subject to depredation by birds, squirrels, and mold. Since the nuts fall over a period of several weeks, several harvests are required to get a maximum yield of high quality nuts. Many nuts come down in the burs, and will have to be removed mechanically DeMartini uses a converted walnut huller.