Also called Japanese Walnut. A sport of the Japanese walnut with an unusual form: the shell and its nut are shaped like a heart.
Clusters of 4–10 nuts containing sweet flavorful meat follow showy spring catkins. Ornamental yellow-green pinnate leaves. Husks can be used to make a yellow dye. Starts bearing fruit in 3–5 years.
Very similar to our American butternut but resistant to canker disease. Will hybridize with butternuts to create buartnuts. Commercial orchards are planting grafted cultivars for nut uniformity.
These are seedlings, so nut size and crackability will vary. Considered partially self-fertile. Plant more than one to increase pollination success, 30–40' apart, in deep well-drained moist soil. Hardy but may not produce nuts after a late spring frost. Native to Japan and the Russian island Sakhalin. Z4/5. (1-3' bare-root trees)