What Plants Can Live Under a Black Walnut Tree

Black walnut trees may have a reputation for being difficult to grow around due to the natural chemicals they excrete, known as juglone, which are toxic to many plants. However, that doesn't mean it's impossible to cultivate a thriving garden under or near a black walnut tree. In fact, there are several plants that can tolerate juglone and can thrive under these trees.

Plants That Can Live Under a Black Walnut Tree

One of the best plants to grow under a black walnut tree is the fern. Ferns are shade-loving plants that can thrive well in the dark and moist environment created by the black walnut tree. Maidenhair ferns, ostrich ferns, and royal ferns are all great options that can add to the beauty of your garden. Hostas are another popular choice. They are robust plants that can tolerate juglone and can thrive in the shaded areas that the black walnut tree provides. Other great options include wild ginger, bleeding heart, and bugleweed.

Preparing the Soil For Plants

Before planting anything under a black walnut tree, it's important to prepare the soil. The roots of the black walnut tree excrete juglone, which can persist in the soil for many years. So, it's vital to remove any fallen leaves, nuts, or other debris from the ground, which can contain high levels of juglone. You should also amend the soil with compost, manure, and organic matter to increase the nutrient content and make it more conducive to plant growth.

Combining Plants For A Beautiful Garden

Another way to create a stunning garden under a black walnut tree is by combining different plants. For instance, combining hostas, ferns, and wild ginger can create a beautiful and healthy ecosystem that thrives in the shade provided by the tree. Other great combinations include the use of daylilies, astilbes, and heucheras. Just be sure that you choose plants that are compatible with each other and tolerant of juglone.

Caring for Your Plants

While there are several plants that can grow under a black walnut tree, it's still important to care for them properly. One of the most important things to do is to keep the soil moist. Black walnut trees can extract a lot of moisture from the soil, which can affect the growth of other plants. Therefore, it's vital to ensure that the soil is watered regularly to keep the plants healthy. Also, make sure to prune the black walnut tree branches that extend over the garden to increase the amount of sunlight that penetrates through the foliage.

Conclusion

Black walnut trees may pose a challenge to gardeners, but with some careful consideration, it's possible to create a beautiful and thriving garden under or near these trees. By selecting the right plants, preparing the soil correctly, combining compatible plants, and providing proper care, you can create a garden that thrives in the shade provided by the black walnut tree.