What should not be planted with tomatoes?

When it comes to planting tomatoes, there are certain companion plants that should be avoided. These plants can hinder the growth and development of tomatoes or attract pests that can harm them. Here are some plants that should not be planted with tomatoes:

1. Brassicas: Brassicas include vegetables like cabbage, broccoli, cauliflower, and kale. These plants release chemicals that can inhibit the growth of tomatoes. Additionally, brassicas are susceptible to similar pests and diseases as tomatoes, so planting them together increases the risk of spreading infections.

2. Potatoes: Potatoes and tomatoes are both members of the nightshade family, and planting them together can increase the chances of diseases like blight. Both crops also require similar soil conditions, so planting them in close proximity can lead to competition for nutrients and water.

3. Fennel: Fennel is a strong aromatic herb that can have a negative effect on the growth of tomatoes. It releases chemicals that can stunt the growth of nearby plants, including tomatoes. Avoid planting fennel near tomatoes to ensure their healthy growth.

4. Corn: Corn is a tall plant that can create shading and compete for sunlight, which can reduce the growth and productivity of tomatoes. Additionally, corn and tomatoes are susceptible to similar pests, so planting them together can attract more pests to the area.

5. Dill: Dill is another herb that can hinder the growth of tomatoes. It produces chemicals that can stunt the growth of nearby plants, including tomatoes. It is best to plant dill in a separate area away from tomatoes.

6. Kohlrabi: Kohlrabi is a member of the cabbage family, and like brassicas, it can release chemicals that inhibit the growth of tomatoes. Avoid planting kohlrabi near tomatoes to ensure their healthy development.

7. Walnuts: Walnut trees and their roots release a chemical called juglone, which can be toxic to many plants, including tomatoes. If you have walnut trees in your garden, it is best to keep tomatoes at a safe distance to avoid any negative effects.

8. Strawberries: While strawberries can be grown as a groundcover around tomato plants, it is not recommended to plant them together in the same bed. Strawberries are susceptible to a variety of fungal diseases, and these diseases can easily spread to tomatoes and other plants.

Remember, these are general guidelines, and individual results may vary. It’s always a good idea to observe your garden and make adjustments based on your specific conditions and experiences.

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Caroline Bates

Caroline is a Miami-based landscaper who specializes in drought-tolerant landscapes. She is the mother of two young children and also enjoys writing for GreenPacks.org in her spare time. Caroline takes great pride in her work, and loves being able to share her knowledge with others through her writing.