my neighbor has a large blk walnut tree that overhangs our yard. we like the shade, but i realized last year it's the reason i can't grow anything in my small urban yard.
i was thinking of putting in a raised bed in the sunniest area with new soil/compost/ etc not contaminated by the blk walnut juice. i wonder if this would work.
"Someone I loved once gave me a box full of darkness. It took me years to understand that this, too, was a gift." -- Mary Oliver
You could trim back all branches that overhang. You could chop away at the roots in your soil.The tree may inhibit the growth of your own plants. With a raised bed you might be able to grow something. I try not to grow near the neighbors large trees,but I have put in bushes that seem to be doing well.