‘Jersey Gem’ (C. mollissima) is a seedling of ‘Orrin’ × ‘Nanking’ developed by Henry Hartmann of New Jersey. The cultivar has a unique dwarfish growth pattern, and its nuts tend to ripen within a narrow window. Hartmann felt that the nuts (small to medium) stored very well and had exceptional flavor (Nave, 1998). Unfortunately, ‘Jersey Gem’ has exhibited some susceptibility to chestnut blight in New York.