What Should I Not Plant Near Tomatoes?

Tomatoes are a popular fruit to grow in the garden, but it's important to be mindful of what you plant near them. Certain plants can attract pests, transmit diseases, or compete with tomatoes for nutrients. In order to grow healthy and productive tomatoes, it's best to avoid planting the following plants near them:

1. Brassicas

Brassicas, which include cabbage, broccoli, cauliflower, and Brussels sprouts, can attract pests like aphids and flea beetles. They also require a lot of nitrogen, which can lead to a nutrient imbalance in the soil and limit the growth of tomatoes. If you do want to grow brassicas and tomatoes together, it's best to rotate them in the garden each year to give the soil time to recover.

2. Nightshades

Nightshades, which include peppers, eggplants, and potatoes, are in the same family as tomatoes and can carry similar diseases. Planting them near each other can increase the risk of diseases like blight and verticillium wilt. It's best to keep a distance of at least four feet between nightshades and tomatoes.

3. Corn

Corn can attract common garden pests like corn borers and earworms, which can also damage tomatoes. Additionally, corn and tomatoes both require a lot of nitrogen, which can lead to soil depletion if planted too close together. Try to keep a distance of at least three feet between corn and tomatoes.

4. Fennel

Fennel is known to attract tomato hornworms, which can quickly defoliate a tomato plant. Planting fennel near tomatoes can also cause a flavor transfer, giving your tomatoes a strong licorice taste. It's best to plant fennel far away from your tomato patch.

5. Walnut Trees

Walnut trees produce a chemical called juglone, which can be toxic to some plants, including tomatoes. Planting tomatoes near a walnut tree can result in stunted growth, yellowing leaves, and even death. If you have a walnut tree in your yard, it's best to avoid planting anything near it, including tomatoes.

A little planning can go a long way when it comes to growing healthy and productive tomatoes. By avoiding these plants near your tomato patch, you can reduce the risk of pests and disease and ensure that your tomatoes have the nutrients they need to thrive.