Juglans cinerea X Juglans ailantifolia (Butternut X Heartnut) Aaron, Jason and Richard planted 5 of these in the 05/97. 1-3 ft. trees...$6.50 each These seedlings exhibit the strongest growth we have ever seen, probably a result of hybrid vigor. While pure heartnuts are not hardy here, these hybrid nut trees have the extreme hardiness of the butternut and the precocity (nuts in clusters of 10-15) of the heartnut. The nuts themselves are quite similar to a butternut.
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