What Not to Plant Next to Tomatoes

Tomatoes are one of the most popular plants grown in gardens all around the world. They are easy to grow, and homegrown tomatoes are much tastier than store-bought ones. However, not all plants are good companions for tomatoes. Some plants can have a negative impact on their growth and yield. In this article, we will discuss what not to plant next to tomatoes.

Avoid Planting Brassicas

Brassicas such as cabbage, broccoli, cauliflower, and kale should not be planted next to tomatoes. These plants are heavy feeders, and they will compete with tomatoes for nutrients in the soil, which can result in poor growth and yield. Additionally, brassicas and tomatoes are both susceptible to similar diseases, such as verticillium and fusarium. Therefore, planting them close together can increase the risk of the spread of these diseases.

Keep Nightshade Plants Away

Nightshade plants such as peppers, eggplants, and potatoes should also not be planted next to tomatoes. These plants are members of the same family as tomatoes, and they are susceptible to the same diseases and pests. Growing them together can increase the risk of disease and pest problems, which can lead to poor growth and yield for all of the plants.

Avoid Planting Fennel and Other Herbs

Fennel and other herbs such as dill and coriander can attract beneficial insects such as ladybugs, lacewings, and parasitic wasps, which can help control pests in the garden. However, they can also attract harmful pests such as aphids and mites, which can damage the growth and yield of tomatoes. Additionally, fennel and other herbs can release chemicals that can inhibit the growth of nearby plants, including tomatoes. Therefore, it is best to avoid planting them next to tomatoes.

Do Not Plant Walnut Trees Nearby

Walnut trees produce a chemical called juglone, which is toxic to many plants, including tomatoes. The roots of walnut trees can release juglone into the soil, which can cause stunted growth and yellowing of the leaves in tomatoes. Therefore, it is best to avoid planting tomatoes near walnut trees or in soil that has been previously occupied by a walnut tree.

Avoid Planting Plants with High Nitrogen Needs

Plants such as beans and peas have high nitrogen needs and can deplete the soil of this important nutrient. Growing these plants next to tomatoes can result in poor growth and yield for the tomatoes. Additionally, the excess nitrogen in the soil can result in lush foliage but fewer fruits on the tomatoes.

Conclusion

To maximize the growth and yield of tomatoes, it is important to choose the right plant companions. Avoid planting brassicas, nightshade plants, fennel, and walnut trees next to tomatoes. Additionally, avoid planting plants with high nitrogen needs. By following these guidelines, you can ensure that your tomatoes grow healthy and provide an abundant harvest.