What NOT to Plant Under Black Walnut Trees

Black walnut trees are known for their beautiful wood and delicious nuts, but they can also be problematic for gardeners. This is because they release a chemical called juglone, which can be toxic to some plants. If you're planning to plant a garden under or near a black walnut tree, there are certain plants you should avoid.

Avoid Planting These Under Black Walnut Trees

Some plants are more sensitive to juglone than others. Here are some plants you should avoid planting under black walnut trees:

Tomatoes

Peppers

Potatoes

Eggplant

Blueberries

Rhubarb

Azaleas

Roses

If you're not sure whether a plant is sensitive to juglone, it's best to do some research before planting it. Some plants may be unaffected by juglone, while others may only be affected if they are growing in close proximity to the tree.

Plants That Can Tolerate Juglone

While some plants can't tolerate juglone, others are known to be tolerant of it. Here are some plants that can be planted under black walnut trees:

Hostas

Ferns

Astilbes

Bleeding hearts

Solomon's seal

Lamium

Hellebores

Turtlehead

Virginia bluebells

These plants are able to tolerate the presence of juglone, but that doesn't mean they will necessarily thrive under a black walnut tree. It's important to choose the right plants for your specific growing conditions.

Alternative Uses for Black Walnut Trees

If you're not able to plant a garden under a black walnut tree, there are still other ways to use the tree. Here are some alternative uses:

Harvest the nuts: Black walnuts are delicious and nutritious. They can be used in baking or eaten on their own.

Use the wood: Black walnut wood is highly prized for its beauty and durability. It can be used to make furniture, flooring, and other decorative items.

Enjoy the shade: Black walnut trees are known for their attractive foliage and shade-providing capabilities. You can relax under the tree and enjoy its beauty.

While black walnut trees can be problematic for gardeners, they also have many benefits. By choosing the right plants to grow under the tree or finding alternative uses for it, you can enjoy all that the black walnut has to offer.