Can You Plant Anything Next to a Walnut Tree?

Walnut trees are not only beautiful additions to any landscape, but they also produce delicious and nutritious nuts. However, not every plant thrives when planted near a walnut tree. This is due to a chemical called juglone, which is found in high concentrations in the roots, leaves, and nut hulls of the walnut tree. Juglone can be toxic to some plants, while others are able to tolerate it to some extent. So, can you plant anything next to a walnut tree?

What Plants Should You Avoid?

There are some plants that are very sensitive to juglone and should not be planted near a walnut tree. These include most fruit trees, such as apple, pear, peach, and cherry trees. Vegetables, such as tomatoes, peppers, and potatoes are also susceptible to juglone toxicity. Other plants that should be avoided include rhododendrons, azaleas, hydrangeas, and blueberries. If you plant these near a walnut tree, they may develop yellow leaves, wilt, or die.

What Plants Can You Plant?

While there are some plants that are sensitive to juglone, there are others that can tolerate it to some extent. These include many native plants, such as black-eyed Susan, coneflower, and asters. Some shrubs that can grow well near a walnut tree include serviceberry, witch hazel, and elderberry. Additionally, some trees such as dogwoods and pines have been known to do well near walnut trees.

How to Plant Near a Walnut Tree?

If you want to plant something near a walnut tree, it’s important to take some precautions to minimize the impact of juglone. One method is to plant in raised beds filled with fresh soil to avoid contact with the tree’s root system. Another approach is to plant in containers, which can be moved away from the tree during the winter months when the tree is dormant. If you want to plant near a walnut tree, it’s important to avoid planting any sensitive plants and to choose plants that are known to be tolerant of juglone.

Final Thoughts

Walnut trees are both beautiful and valuable trees that can provide you with delicious and nutritious nuts. However, when it comes to planting near them, there are some precautions that need to be taken. The presence of juglone can make it difficult for some plants to grow, while others can thrive. To ensure success, choose plants that are known to be tolerant of juglone or plant in raised beds or containers. With proper planning, you can create a beautiful and diverse landscape even near a walnut tree.