See Zone Map. Heartnut Seedlings 1 - 2 ft. 104.00 Ask about lots of 100. We think that it is a Manchurian x heartnut cross. It is slow growing and tends to be late ripening.
Further testing is needed.
The butternut is the hardiest member of the walnut family. Trees have been selected for production, flavor and cracking quality, where unbound kernels are desired. Cracking quality gives them commercial potential. Hardy from zone 3 up, grafts zone 5 up. See Zone Map.