Got Nature? Blog

Some companies claim to sell black walnut tree clones developed at Purdue University; however, Purdue University no longer holds patent rights to these trees and cannot endorse the claims made for the genetic character or performance of these trees.

Purdue has supplied seed from our black walnut seed orchards to the Indiana Division of Forestry for their “Select” black walnut seedlings. Some of the parent trees in these orchards are historically patented black walnut as well as other black walnuts selected for good tree form and vigorous growth. These seedlings are available through the state nursery tree sales program. Order forms are available online or from local district foresters, Purdue Extension and U.S. Department of Agriculture offices beginning in August or September.

Access the state nursery tree order form online.

For resources regarding grafting and planting walnut trees view Budding, Grafting & Planting Walnut Trees, University of California-Davis, Department of Agriculture and Natural Resources.

For more information regarding growing walnut trees and other fine hardwoods view Walnut Council website.