Factsheet N08: Heartnuts – Juglans ailantifolia cordiformis


Since its introduction into North America from Japan in the 1800’s, the heartnut (Juglans ailantifolia var. cordiformis, Syn. J.cordiformis) has been largely considered a curiosity and at best a substitute for the English walnut (Juglans regia) to plant where the latter were not hardy enough. Work in recent decades has improved cracking quality (for a long time a problem) and the potential as a commercial and garden nut tree is very good. It also makes a beautiful ornamental tree, with large compound leaves giving it an almost tropical appearance.

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