Chili Plants – Companions: Which Plants Go Well Together?

It's quite amazing: In the right neighborhood, chili plants grow significantly better. Pikantista! When researching the reasons, exciting discoveries were made. Did you know that chili grows particularly well near basil? When you hear the reason, you'll be astonished.

How Plants Communicate with Each Other

First, it can be assumed that good companion plants don't compete with each other for nutrients. Then it would be even better if the mixed culture mutually protects against pests. That plants send messages to each other was discovered in an experiment. Not only with fragrances, but surprisingly also with sounds.

The communication was researched in an Australian laboratory. A significantly higher germination and growth rate was found in the neighborhood of basil. As a Pikantista, you know how important such details are for a successful harvest.

After the researchers hermetically isolated the herbs from the chili plants with foil, the positive impulses on their growth remained. Therefore, the scientists suspect that there is a connection between plants through sounds or vibrations. In field experiments with sounds and plants, corn roots could be observed aligning towards the sound source.

Good Neighbors for Chili Plants

Chili plants are quite sociable. They get along with many plants that grow nearby. Above all tomato and eggplant, but also herbs like basil, oregano and rosemary thrive magnificently in the same bed. While chili plants protect neighboring herbs from tube fungi through their roots, the chili probably benefits from their essential oils. These repel some pests that could otherwise infest their leaves.

Good experiences have also been made with cucumbers, pumpkins and chard. With pumpkin and zucchini, consider the distance – they are heavy feeders. You can plant parsley well around chilis or even in the same flower box. With sufficient distance, there are also no problems with the typical hot sauce candidates: beans, onions, garlic and carrots.

Bad Neighbors – Plants to Avoid

Fennel is the worst possible neighbor for many nightshades like eggplant, tomatoes and also peppers. Why they don't get along is not yet fully clarified. Perhaps it's due to the essential oils in fennel.

Kohlrabi, peas, broad beans, beetroot and fruit trees are also bad neighbors. With almost all varieties, the chili gets the short end of the stick and develops rather poorly. You surely know this – sometimes a plant just doesn't want to thrive properly, and often it's due to the wrong company!

Frequently Asked Questions about Mixed Culture with Chili Plants

Why do chilis grow better next to basil?

Scientific studies show that basil promotes the germination rate and growth of chili plants. Researchers suspect that plants communicate through sounds and vibrations – even when they are separated by foil.

Which plants are good neighbors for chili?

Tomato, eggplant, basil, oregano, rosemary, cucumber, pumpkin, chard and parsley are ideal neighbors. Beans, onions, garlic and carrots also work well with sufficient distance.

Which plants should I keep away from chilis?

Fennel is the worst neighbor for chili plants and other nightshades. You should also avoid kohlrabi, peas, broad beans, beetroot and fruit trees.

How do chili plants protect their neighbors?

Chili plants protect neighboring herbs from tube fungi through their roots. In return, chilis benefit from the essential oils of the herbs, which repel pests.


About the Author

Fabian aka Pikantista

Fabian is the founder of Pikantista and has been bringing Europe's hottest chili sauces to you for over a decade. With his experience from projects like Pika Pika Chili Compositions and Chili Mafia, he knows every trick for successful chili cultivation. Follow him on Instagram for more garden tips!