Q.Can Butternut Trees Be Planted By All Shrubs Or Trees?
I was thinking about planting this tree by ninebarks , spirea , nan king cherry and thunder child weeping crab. I have heard you can’t plant the butternut tree by some other trees and bushes. Is this true?

Certified GKH Gardening Expert
I would isolate this tree far from others. The roots will produce juglone, which many plants are sensitive to. If you cannot isolate, then you may choose to grow this in a very large container.
Here is an article that will help you with their care:
https://www.gardeningknowhow.com/edible/nut-trees/walnut/growing-butternut-trees.htm