The seeds for this product can only be shipped to customers in Canada. No USA or overseas delivery.
Juglans nigra (Black Walnut) Seeds
Zone: 4 to 9.
Native to eastern North America.
Black walnut is a handsome and valuable tree, cultivated as a forest tree for its high-quality wood and edible nuts. It is a long-lived tree, sometimes exceeding 200 years in age. It prefers full sun and grows best in soil that is deep, fertile, and moist but well-drained. It has a medium growth rate of 1 to 2 feet per year. The Black Walnut is a member of the Juglans family. Its roots produce a substance named juglone that is toxic to various plants. The production of juglone is a protective response by the tree to assure its survival. Hence do not plant other plants under the canopy of the Black walnut tree.
Size: Height 50 to 75 ft; Width 50 to 75 ft.
Nuts have a short shelf life so it is best to plant immediately or keep refrigerated until ready to plant.
Stratification: Black walnut nuts require 90 to 120 days cold, moist stratification at 3° C (37° F) to 5° C (41° F).
- Mix some soilless mixture for starting seeds or sand and vermiculite, moisten with water and place it in sandwich bag(s). Note: mixture should be moist not soggy. The bag(s) should not be sealed. Poke holes or leave partially open for air.
- Place the nuts inside the mix and refrigerate for about 90 to 120 days. Occasionally check to see if the nuts are starting to sprout.
- After the required time plant the nuts in soil 2 inches deep in a sheltered spot in the ground or in deep pots where they can grow.
Protect the pot or site from squirrels or other animals that may discover and eat the nuts.