Walnut trees don't like other trees.
If you can't move the walnut tree, move the orchard.
Yeh, we found that out after Hubby had already planted them. He thought they were far enough away, but I think it’s obvious that they aren’t.
I have suggested he move the orchard, but he won’t. He said he was going to order some more and plant them in the few remaining spaces in the back yard.
The front yard has no walnut trees, but so far, every single thing we have planted there has died. We have some oaks and pretty dogwoods and things like that which were here when we bought the lot about 40 years ago.
It’s just really lousy soil for one thing. He even had it tested, and added all sorts of stuff, but no good. So after about 3 years of no successes, he just won’t plant any thing else there.