What flowering plants grow grow under black walnut tree?

Under black walnut trees, it's important to choose flowering plants that can tolerate the juglone toxin produced by the tree. Some suitable options include native plants like wild geranium (Geranium maculatum), Virginia bluebells (Mertensia virginica), and various ferns. Additionally, plants like astilbe and hostas can thrive in the dAppled shade and moist conditions often found beneath these trees, provided they are not overly sensitive to juglone. Always verify specific plant tolerances as conditions may vary.