What Plants Not to Plant Next to Tomatoes

Tomatoes are a popular plant among gardeners, but they can be sensitive to certain plants that are commonly grown in home gardens. Knowing what plants not to plant next to tomatoes can help improve the health, growth, and flavor of your tomato plants. Here are some plants to avoid planting next to tomatoes:

1. Nightshade Plants

Tomatoes are part of the nightshade family, and planting other nightshade plants near them can increase the risk of spreading diseases and pests. Avoid planting potatoes, eggplants, peppers, or other tomatoes near your tomato plants. These plants are all part of the nightshade family and can create a breeding ground for pests and diseases that can harm your tomato plants.

2. Brassicas

Brassicas are a group of vegetables that includes plants like cabbage, broccoli, and cauliflower. These plants tend to attract pests like aphids and can attract diseases that can harm your tomato plants. It's best to avoid planting brassicas near your tomato plants, especially if you have had pest issues in your garden in the past.

3. Corn

Corn is a tall plant that can shade your tomato plants, which can lead to slower growth and reduced yields. Corn also attracts pests like corn borers that can harm your tomato plants. If you want to grow corn and tomatoes in your garden, it's best to plant them in separate areas to avoid these issues.

4. Fennel

Fennel is known for its strong scent, and this scent can attract pests that can harm your tomato plants. In addition, fennel can also produce chemicals that can inhibit the growth of other plants, including tomatoes. It's best to avoid planting fennel near your tomato plants to ensure that they grow healthy and strong.

5. Walnuts

If you have walnut trees in your garden, it's best to avoid planting tomatoes near them. Walnuts secrete a chemical called juglone that can be toxic to many plants, including tomatoes. The roots of walnut trees can also take up a lot of nutrients and water from the soil, which can make it harder for tomato plants to grow and thrive.

In conclusion, knowing what plants not to plant next to tomatoes can help you grow healthy, robust plants and improve your overall gardening success. By avoiding plants like nightshades, brassicas, corn, fennel, and walnuts, you can ensure that your tomato plants have the best chance of success.