It is also a valuable nut tree.
Walnuts ripen in the fall.
As the fruit matures, the hullsoftens and changes from a solid green to a yellowish color. Thefruit are mature and ready for harvest as soon as the hull can bedented with your thumb. The best quality nuts are obtained bypicking or shaking the mature nuts from the tree. Mostindividuals, however, gather the mature nuts as they drop to theground. Dropping of mature nuts usually occurs in mid to lateSeptember.