The Ultimate Guide to Pepper Companion Plants

If you're a gardener, then you know that planting different crops together is a great way to maximize yield, improve soil health, and deter pests. Companion planting is an age-old practice that has been used by farmers and gardeners for centuries. In this article, we'll be exploring the best pepper companion plants that you can use to grow healthier and more productive pepper plants.

What are Companion Plants?

Companion plants are plants that are grown next to each other to benefit one or both of them. Some plants have natural synergies that make them ideal companions, while others may have specific properties that can repel harmful insects or attract beneficial ones. By planting certain crops together, you can create a healthy ecosystem in your garden where plants support each other and thrive.

The Benefits of Companion Planting for Peppers

Pepper plants can benefit greatly from companion planting. Here are some of the benefits you can expect:

Improved Soil Health

Pepper plants are heavy feeders, meaning they require a lot of nutrients to grow and produce fruit. By planting companion plants that fix nitrogen in the soil, such as legumes, you can improve the soil quality and provide the peppers with the nutrients they need to thrive.

Pest Control

Certain plants are known to repel pests that can damage pepper plants. For example, marigolds can deter nematodes, while basil can repel aphids and mites. By planting these companion plants alongside your peppers, you can reduce the risk of pest damage and ensure a healthy and productive harvest.

Improved Yield

Companion planting can also help improve the yield of your pepper plants. By planting crops that have different rooting depths, you can prevent competition for water and nutrients in the soil. Additionally, some companion plants can attract pollinators, which can help increase the number of peppers that develop.

The Best Pepper Companion Plants

So, what are the best companion plants to grow alongside your pepper plants? Here are some of the top options:

1. Tomatoes

Tomatoes make great companion plants for peppers because they have similar nutrient requirements and don't compete for resources. Additionally, both plants can benefit from being pruned and trellised together, which can help increase yields and reduce pest problems.

How to Plant:

Plant tomatoes and peppers at least 18 inches apart to allow for adequate air circulation. Add a layer of mulch around the plants to conserve moisture and keep weeds at bay.

2. Basil

Basil is a natural pest repellent that can help protect your pepper plants from aphids, spider mites, and whiteflies. Additionally, basil has a pleasant aroma that can help mask the scent of the peppers, making it harder for pests to find them.

How to Plant:

Plant basil around the perimeter of your pepper bed, or interspersed throughout the row. Be sure to space the plants at least 6 inches apart to allow for proper growth.

3. Marigolds

Marigolds are known to repel nematodes, which can be a major problem for pepper plants. Additionally, marigolds can attract beneficial insects like ladybugs, which can help control other pests in the garden.

How to Plant:

Plant marigolds around the perimeter of your pepper bed, or interspersed throughout the row. Be sure to space the plants at least 6 inches apart to allow for proper growth.

4. Cilantro

Cilantro can attract beneficial insects like hoverflies and parasitic wasps, which can help control pests like aphids and whiteflies. Additionally, cilantro is a fast-growing herb that can be harvested and used in cooking.

How to Plant:

Plant cilantro in the same bed as your peppers, or in a nearby bed where it can attract beneficial insects to the area.

5. Nasturtiums

Nasturtiums are a great companion plant for peppers because they can repel aphids, whiteflies, and cucumber beetles. Additionally, nasturtiums have edible flowers that can be used in salads and other dishes.

How to Plant:

Plant nasturtiums around the perimeter of your pepper bed, or interspersed throughout the row. Be sure to space the plants at least 6 inches apart to allow for proper growth.

Other Companion Plants for Peppers

In addition to the plants listed above, there are many other companion plants that can benefit your pepper plants. Here are some additional options to consider:

1. Beans

Beans are nitrogen-fixing legumes that can help improve soil health and provide the nutrients that pepper plants need to thrive.

2. Chives

Chives can deter aphids and other pests that can damage pepper plants. Additionally, chives have a mild onion flavor that can be used in cooking.

3. Oregano

Oregano can repel pests like whiteflies and spider mites, while also attracting beneficial insects like bees and parasitic wasps.

4. Dill

Dill can attract beneficial insects like ladybugs and lacewings, which can help control aphids and other pests in the garden.

5. Garlic

Garlic can repel pests like aphids and spider mites, while also adding a pungent flavor to dishes.


Companion planting is an excellent way to improve the health and productivity of your garden. By planting pepper companion plants like tomatoes, basil, marigolds, cilantro, and nasturtiums, you can create a healthy ecosystem that supports your pepper plants and deters harmful pests. Additionally, by choosing the right companion plants, you can improve soil health, increase yields, and enjoy a bountiful harvest.

FAQs

1. How close should I plant my peppers to their companion plants?

It's best to space your plants at least 6 inches apart to allow for proper growth and air circulation. However, some companions may require more or less space, so be sure to do your research before planting.

2. Can I plant peppers with other nightshade plants like eggplants and potatoes?

While peppers are technically part of the nightshade family, they don't always make good companions for other nightshades. Eggplants and potatoes, for example, have similar nutrient requirements and can compete with peppers for resources. It's best to plant these crops separately.

3. Can I use companion planting to control diseases in my pepper plants?

While companion planting can help deter pests and improve soil health, it's not always effective at controlling diseases in pepper plants. If you're dealing with a disease issue, it may be best to consult with a gardening expert or plant pathologist for advice.

4. Can I grow all of these companion plants together in the same bed?

Yes! In fact, planting a variety of companion plants together can create a healthy and diverse ecosystem that benefits all of your plants. Just be sure to give each plant enough space to grow and thrive.

5. Can I eat the companion plants?

Many of the companion plants listed in this article are edible and can be used in cooking. However, be sure to research each plant before consuming it, as some may have toxic properties or require special preparation.