How To Sprout Butternut (white Walnut) Seeds?

Question

I have butternut seeds that are very old — maybe thirty years. What can I do to sprout them? The shells are very hard but they were kept in a cool basement.

Answer 1

They may not be viable at this point, and are very susceptible to disease. You may still choose to take on this task. This will require some preparation, beforehand.

Here are some articles that will help:

https://www.gardeningknowhow.com/edible/nut-trees/buarnut/buartnut-tree-information.htm

https://www.gardeningknowhow.com/edible/nut-trees/walnut/growing-butternut-trees.htm

https://www.gardeningknowhow.com/edible/nut-trees/walnut/butternut-harvesting.htm