What Vegetable Plants Tolerate Black Walnut Trees

Black walnut trees produce a chemical compound called juglone in their roots, leaves, and fruit husks that is toxic to many vegetable plants. This can make it challenging for gardeners to grow a flourishing vegetable patch near black walnut trees. However, there are some vegetable plants that are tolerant of juglone and can thrive in the presence of these trees.

Vegetable Plants that Tolerate Black Walnut Trees

1. Beans – Both bush and pole beans are highly tolerant of juglone. In fact, beans have been known to actually benefit from the presence of black walnut trees because the juglone can help control common bean pests such as Mexican bean beetles.

2. Corn – Corn is another vegetable plant that can tolerate juglone. It’s important to plant corn in soil that has not been contaminated by juglone, but once the plant is established it can handle the toxin produced by black walnut trees.

3. Cucumber – Cucumbers are also highly tolerant of juglone. In addition to being resistant to the toxin produced by black walnut trees, cucumbers are also highly resistant to common cucumber pests such as cucumber beetles.

4. Squash – Both summer and winter squash are great choices for gardens near black walnut trees. Squash plants are highly resistant to juglone and can also help prevent other plants from being affected by the toxin.

5. Tomatoes – Although tomatoes are moderately tolerant of juglone, they can still be grown successfully near black walnut trees. It’s important to select tomato varieties that are known to be resistant to the toxin in order to avoid any potential problems.

Garden Care Tips for Growing Vegetables Near Black Walnut Trees

1. Test soil for juglone contamination – Before planting your vegetable patch near a black walnut tree, it’s important to test the soil for juglone contamination. If the soil is contaminated, consider planting in raised beds or containers filled with uncontaminated soil.

2. Plant tolerant crops – As mentioned above, there are some vegetable plants that are more tolerant of juglone than others. Selecting these tolerant crops will increase your chances of success when growing near black walnut trees.

3. Monitor for disease and pests – Even if your vegetable plants are tolerant of juglone, they can still be susceptible to disease and pests. It’s important to monitor your plants regularly and take action as soon as any problems arise.

4. Maintain good garden hygiene – Keeping your garden clean and tidy can help prevent the spread of disease and pests. Be sure to remove any dead or damaged plant material, and dispose of it properly to prevent contamination.

Conclusion

Growing vegetables near black walnut trees can be a challenge, but it’s not impossible. By selecting tolerant crops, testing soil for contamination, monitoring for disease and pests, and maintaining good garden hygiene, you can grow a thriving vegetable patch in the shadow of these majestic trees.