Toxic Roots of Walnut Trees
I have planted five walnut trees among several pine cone trees in my backyard. The walnut trees are about 2-3 feet high now and growing fast. Will the toxic roots of the walnut trees be detrimental to the pine trees?
Certified GKH Gardening Expert
Most pine trees do not grow well within 50 feet of black walnut trees. If the black walnuts are closer than 50 feet to your pine trees, we recommend that you move them to a better location.