I have a struggling rhododendron. I got it from a friend who was moving. Put it in the back, knowing it liked shade, not knowing about juglone, yet. It did alright the first year. The next spring, it was nearly dead. Then they cut back some of the trees, it died more Then I read about juglone and black walnuts. I brought it to the back of the front, south facing garden. Even shaded by other plants, the leaves burned. It is now in the back in a pot. I make sure no leaves fall in the pot. Of course, it is not directly on the ground. It is smaller than when it started, but recovering.
The hostas are doing great. They were also from a friend...They are huge this year! I divided the one big group last year and now have three huge clumps. I think they are sum and substance. I would love to grow grass on a walkway against the fence. Tried three times. It germinated, but never thrived. Maybe I need to loosen the soil? What a chore. Any suggestions for a walkable juglone and shade tolerant ground cover that doesn't need mowing? One neighbor has weeds the other gravel....would prefer something more....attractive.
I killed a bleeding heart, but have an alba bleeding heart growing in the front yard. I am trying to shade it with other plants. I even killed rhubarb. I'm looking up euconomis. I also read that mayapples are juglone tolerant, have to learn more about them. I have zinnia and calendula seedlings that I will relocate when they get a bit bigger. They are juglone tolerant, but may not get enough sun. I am able to grow lettuce. I grow my salad lettuce in windowboxes, but I always plant a bit near the fence for the bunnies and groundhog, hoping that they leave my veggies alone. I have my front garden full of flowers, so I grow veggies in containers.
In addition to the black walnut trees, the back area has a tall wooden fence and compacted, poorly draining rocky soil. My "neighbor" on the other side of the fence is a graveyard with plenty of graves circa late 1800s to present. I am clearly the first person to try to garden here. I started amending the soil with kitchen scraps and earthworms and took it from there.
