What Not to Plant Tomatoes Next To

Tomatoes are a beloved crop for many gardeners, but they can be finicky plants that require a certain amount of care and attention. One important consideration when growing tomatoes is what to plant them next to. Some plants can actually harm tomatoes, while others can help them thrive. In this article, we'll take a look at what not to plant tomatoes next to.

Don't Plant Tomatoes Next to Brassicas

Brassicas like broccoli, cauliflower, and cabbage can release chemicals into the soil that can harm tomato plants. These chemicals, called glucosinolates, can stunt the growth of tomato plants and even cause them to wilt or die. Additionally, brassicas are heavy feeders that can compete with tomatoes for nutrients. If you must plant brassicas near your tomatoes, be sure to give your tomatoes plenty of space and nutrients to compensate.

Avoid Planting Tomatoes Next to Nightshade Plants

Tomatoes are part of the nightshade family, but that doesn't mean they should be planted next to other nightshade plants like peppers, eggplant, or potatoes. These plants are often susceptible to the same pests and diseases as tomatoes, and planting them together can create a breeding ground for these issues. Additionally, nightshade plants are heavy feeders that can deplete the soil of nutrients. If you do plant tomatoes next to nightshade plants, be sure to rotate your crops and amend the soil with plenty of organic matter.

Don't Plant Tomatoes Near Black Walnut Trees

Black walnut trees release a chemical called juglone that can be toxic to many plants, including tomatoes. The roots, bark, and leaves of the tree all contain juglone, which can cause tomato plants to wilt, yellow, or die. Even planting tomatoes near the drip line of a black walnut tree can be problematic. If you have a black walnut tree in your yard, it's best to plant your tomatoes as far away as possible.

Avoid Planting Tomatoes Next to Fennel

Fennel is a fragrant herb that's popular in Mediterranean cuisine, but it can be damaging to tomatoes. Fennel exudes chemicals that can stunt the growth of tomato plants and even cause them to wither and die. Additionally, fennel is a known attractant for tomato hornworms, a common garden pest that can quickly decimate a tomato plant. If you're growing fennel and tomatoes in the same garden, be sure to keep them well-separated.

Conclusion

Growing tomatoes can be a fulfilling and rewarding experience, but it's important to plant them in the right location. Avoid planting tomatoes next to brassicas, nightshade plants, black walnut trees, or fennel, as these can all be harmful to the health and growth of your tomato plants. By selecting the right neighbors for your tomatoes, you can ensure a bountiful harvest and a thriving garden.