Estimated reading time: 4 minutes
If you’re growing tomatoes, you may want to consider planting companion plants alongside them. Companion planting is the practice of planting different crops near each other to improve growth and deter pests. When it comes to tomatoes, there are several companion plants that can help improve the health and yield of your tomato plants. In this article, we cover what plants work best with tomato plants and what benefits they provide.
Best Companion Plants for Tomatoes
The table below offers an alphabetized list of potential companion plants for your tomatoes and a brief description of how the particular plant helps your tomatoes.
| Companion Plant | Benefit |
| Asparagus | Repels nematodes and asparagus beetles. |
| Basil | Repels pests and enhances the flavor of tomatoes. |
| Carrots | Attracts beneficial insects. |
| Marigold | Attracts beneficial insects and repels nematodes, whiteflies, and aphids. |
| Nasturtium | Attracts beneficial insects and has fungicidal properties. |
| Parsley | Attracts beneficial insects such as ladybugs and lacewings. Adds nitrogen to the soil. |
Why Companion Plants are Important
When planning your vegetable garden, it’s important to consider companion plants. Companion planting is the practice of planting different crops close to each other to take advantage of their beneficial interactions. These combinations of plants can help with the growth and health of plants and also improve the overall yield of your crops.
Companion plants help with the growth by providing nutrients, deterring pests, and improving soil quality. For example, planting basil alongside tomato plants can improve the flavor of the tomatoes and repel tomato hornworms. Marigolds can also be planted as a companion plant to deter nematodes and other pests that can damage tomato plants.
Companion planting can also improve the overall yield of your crops. By planting compatible crops together, you can create a more diverse and balanced ecosystem in your garden. This can lead to healthier and more productive plants, which can increase the yield of your tomato plants.
Companion planting can also help with pollination and nutrient uptake. Planting nitrogen-fixing plants such as beans and carrots near tomato plants can help improve soil quality and provide essential nutrients to the tomatoes. Additionally, planting herbs such as basil, oregano and parsley can attract pollinators such as bees, which can help increase the yield of your tomato plants.
When choosing companion plants for your tomato plants, it’s important to consider their compatibility. Some plants can have negative interactions with tomato plants, so it’s important to choose companion plants that will benefit your tomato plants. For example, planting tomatoes alongside corn can lead to stunted growth and reduced yields in both crops.
One popular companion plant for tomatoes is basil. Not only does basil repel pests like flies and mosquitoes, but it also enhances the flavor of tomatoes. Planting basil near your tomato plants can help improve the overall health and flavor of your harvest. Another useful companion plant for tomatoes is marigold. Marigolds are known to deter pests like nematodes and whiteflies, which can harm tomato plants. Additionally, marigolds can help improve soil quality by repelling harmful soil nematodes.
Frequently Asked Questions
Some good companion plants for tomatoes include basil, marigolds, and parsley. These plants can help repel pests, improve soil health, and attract beneficial insects.
Marigolds are also known to repel nematodes, which can damage tomato roots. Garlic, onions, or chives near your tomato plants can help repel aphids and spider mites.
Yes, you can plant cucumbers with your tomatoes. However, it’s important to give each plant enough space to grow and avoid overcrowding.
Other members of the nightshade family, such as peppers, eggplants, and potatoes, should not be planted near tomatoes as they can attract the same pests and diseases, leading to reduced yields and poor plant health.