What Plants Can Grow Near Walnut Trees

Walnut trees can be a beautiful and valuable addition to any landscape. However, they can also be quite a challenge for gardeners because they release a chemical called juglone into the soil, which can be toxic to many other plants. But, there are some plants that can tolerate or even thrive in the presence of juglone.

Trees

If you're looking for trees to plant near a walnut tree, you're in luck! There are several tree species that are tolerant of juglone. Some examples include:

Tulip poplar (Liriodendron tulipifera)

Eastern red cedar (Juniperus virginiana)

Red maple (Acer rubrum)

White oak (Quercus alba)

Black cherry (Prunus serotina)

Keep in mind that even juglone-tolerant trees may struggle if planted too close to a walnut tree or in poor growing conditions. It's always a good idea to research a plant's specific needs before planting it in your garden.

Shrubs

Many shrubs are susceptible to juglone poisoning, but there are a few that may withstand it. These include:

Redosier dogwood (Cornus sericea)

Honeysuckle (Lonicera spp.)

Spicebush (Lindera benzoin)

Cranberry (Viburnum spp.)

Sumac (Rhus spp.)

Again, it's important to remember that these plants may still struggle if planted too close to a walnut tree or in poor growing conditions.

Perennials

When it comes to perennial plants, there are some that are more juglone-tolerant than others. Some good options include:

Hostas (Hosta spp.)

Astilbe (Astilbe spp.)

Black-eyed susan (Rudbeckia spp.)

Columbine (Aquilegia spp.)

Phlox (Phlox spp.)

These plants should be planted at least 50 feet away from a walnut tree, and preferably on raised beds or mounds to improve drainage and avoid direct contact with walnut roots.

Vegetables

Many vegetables are sensitive to juglone, so it may be challenging to find crops that can be grown successfully near a walnut tree. However, there are a few options to consider:

Beans

Beets

Carrots

Peas

It's important to note that even these juglone-tolerant vegetables may not produce as well as they would in a different location. Consider testing your soil every few years to make sure it's still suitable for growing vegetables.

Conclusion

Overall, there are certainly some plants that can grow near walnut trees. However, it's important to research the specific needs of a plant and consider its tolerance to juglone before planting it near a walnut tree. With careful planning and attention, it's possible to create a beautiful and productive garden in the presence of walnut trees.