Is there a list of flowers and bushes that do not do well near walnut trees? I know tomato plants are one. Does it make a difference if they are in pots? Also, we are seeing that a couple of very large branches on the walnut tree have large, hollow openings where they were pruned. Is the tree going to survive?
Here is a list from Extension University of Wisconsin: https://hort.uwex.edu/articles/black-walnut-toxicity/