ABSTRACT
This chapter provides information on the uses, folk medicine, chemistry, germplasm, distribution, ecology, cultivation, harvesting, yields, energy, and biotic factors of Heartnut. Heartnut is grown primarily for the kernels of the nuts, used in confectioneries and pastries. Wood soft, not strong, of little value as lumber. Nuts vary considerably in size and roughness. Best-known varieties of common Siebold walnut are 'Dardinell' and 'English'. Heartnut has a cordate or cordate-ovoid, rather depressed shell, with relatively thin shell, is nearly smooth with a shallow groove on each side, and has better shelling quality. Propagation by grafting, methods being the same as for butternut and black walnut. Siebold grafts easily on its own seedlings and on butternut. Fruits are borne in long racemes and in good locations, trees produce prolifically. Nuts fall to ground in late summer and early fall, and should be harvested by picking up the nuts as soon as they fall, to discourage infestation by maggots.
