26 to 32 per Lb. Available fall 2001 . Castanea H. is a large American chestnut timber type tree. Gall Wasp resistant and immune to chestnut blight. Reportedly cold hardy to zone 5 .
Taste is similar to a English and butternut flavor.
The heart nut is a Japanese walnut with spreading growth habits, Shells crack out easy and in halves, nuts develop in clusters of 5 to 10 per pod, grafted trees bears in 3 to 4 yr. All trees 3 to 5 feet tall. Jewel Box Heartnut - This cultivar of Heartnut was developed in Kentucky. The Jewel Box is an early vegetating cultivar. A discovery of W.C. Donoho of Louisville Kentucky selected by Fred Blankenship.