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Can eggplant, peppers, and tomatoes be planted together?

Can eggplant, peppers, and tomatoes be planted together?

2026-02-10 09:10:07 · · #1

Many people, when growing vegetables, are unaware of the incompatible relationships between different vegetables . In an attempt to maximize land use, they haphazardly plant them together, ultimately leading to serious diseases and causing more harm than good. So, can eggplants, peppers , and tomatoes be planted together? Let's find out below.

Can eggplant, peppers, and tomatoes be planted together?

Eggplant, peppers, and tomatoes all belong to the Solanaceae family and should not be planted together. Firstly, they compete for nutrients; secondly, they can transmit diseases and pests to each other.

Which vegetables cannot be planted together?

1. Cucumbers and tomatoes

Intercropping cucumbers and tomatoes can lead to the spread of diseases. They are susceptible to the same pathogens, and the odors they emit can also interfere with each other's growth.

2. Broccoli and lettuce

Planting broccoli and lettuce together is like planting vegetables in the same field repeatedly. This can lead to low germination rates and restricted growth in lettuce. During the growing season, it can also cause yellowing and drying of leaves, premature aging of the plant, and other diseases and pests.

3. Peas, scallions, and garlic

Planting peas alongside scallions and garlic is extremely detrimental to pea growth. This is because scallions and garlic release a special substance during their growth that restricts pea growth, resulting in fewer flowers and fewer pods.

4. Celery and carrots

Planting celery and carrots together can easily lead to the spread of diseases such as soft rot.



5. Potatoes and pumpkins

Both potatoes and pumpkins require a lot of nutrients, and intercropping them may lead to competition for nutrients, affecting their growth.

6. Legumes and onion family plants

Legumes can fix nitrogen from the air in the soil, enriching the soil. However, onions and garlic secrete antibiotics that destroy the nitrogen-fixing bacteria in the roots of legumes, so it is best not to mix them.

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Articles 2026-02-10