Companion planting is an age-old gardening technique that involves growing different plants near each other to maximize their growth, health, and productivity. When it comes to tomatoes, companion planting can be a game-changer. Not only can it enhance the flavor of your tomatoes, but it can also deter pests, improve soil health, and even save space in your garden.
In this article, we’ll explore the 8 best plants for companion planting with tomatoes, why they work well together, and how you can incorporate them into your garden for a bountiful harvest.
What is Companion Planting?
Companion planting is the practice of growing certain plants together to benefit one or both species. These benefits can include:
- Pest control: Some plants naturally repel pests that target tomatoes.
- Improved growth: Certain plants can enhance soil nutrients or provide shade and support.
- Disease prevention: Companion plants can reduce the risk of soil-borne diseases.
- Space optimization: Pairing plants with different growth habits can maximize garden space.
Tomatoes are one of the most popular garden vegetables, but they’re also prone to pests like aphids, whiteflies, and hornworms, as well as diseases like blight. By choosing the right companion plants, you can create a healthier, more productive tomato garden.
8 Best Plants for Companion Planting With Tomatoes
1. Basil
Basil is one of the best companion plants for tomatoes. Not only do they share similar growing conditions, but basil also repels pests like thrips, flies, and mosquitoes. Additionally, many gardeners swear that basil enhances the flavor of tomatoes when grown nearby.
- Benefits: Repels pests, improves flavor, and attracts pollinators.
- How to Plant: Plant basil around the base of tomato plants or in adjacent rows.
2. Marigolds
Marigolds are a powerhouse in the garden. Their strong scent deters nematodes, aphids, and whiteflies, which are common tomato pests. They also attract beneficial insects like ladybugs and hoverflies.
- Benefits: Repels harmful pests and attracts beneficial insects.
- How to Plant: Plant marigolds around the perimeter of your tomato bed or intersperse them between tomato plants.
3. Garlic
Garlic is a natural pest repellent that can protect tomatoes from spider mites, aphids, and even rabbits. Its strong odor masks the scent of tomatoes, making it harder for pests to locate them.
- Benefits: Repels pests and may improve soil health.
- How to Plant: Plant garlic cloves around the base of tomato plants or in nearby rows.
4. Nasturtiums
Nasturtiums are not only beautiful but also highly functional. They act as a trap crop, attracting aphids and whiteflies away from tomatoes. They also repel squash bugs and beetles.
- Benefits: Acts as a trap crop and repels certain pests.
- How to Plant: Plant nasturtiums near the base of tomato plants or along the edges of the garden.
5. Carrots
Carrots and tomatoes make great companions because they occupy different soil levels. While tomatoes grow deep roots, carrots grow shallowly, so they don’t compete for nutrients. Carrots also help aerate the soil, benefiting tomato roots.
- Benefits: Improves soil structure and maximizes space.
- How to Plant: Plant carrots in between tomato plants or in adjacent rows.
6. Borage
Borage is a fantastic companion plant for tomatoes. It deters tomato hornworms and improves the flavor of tomatoes. Additionally, borage attracts pollinators like bees, which can increase tomato yields.
- Benefits: Repels pests, improves flavor, and attracts pollinators.
- How to Plant: Plant borage near tomato plants, but give it some space as it can grow quite large.
7. Lettuce
Lettuce is a low-growing plant that pairs well with tomatoes. It acts as a living mulch, helping to retain soil moisture and suppress weeds. Lettuce also benefits from the shade provided by taller tomato plants during hot summer months.
- Benefits: Conserves soil moisture and suppresses weeds.
- How to Plant: Plant lettuce around the base of tomato plants or in between rows.
8. Chives
Chives are another excellent companion for tomatoes. They deter aphids and improve the overall health of tomato plants. Chives also add a subtle onion-like flavor to the soil, which can enhance the taste of tomatoes.
- Benefits: Repels pests and improves flavor.
- How to Plant: Plant chives around the base of tomato plants or in nearby containers.
Plants to Avoid Planting Near Tomatoes
While companion planting can be highly beneficial, some plants can harm tomatoes. Avoid planting the following near your tomatoes:
- Cabbage family (broccoli, cauliflower, kale): These plants compete for nutrients and can stunt tomato growth.
- Corn: Corn attracts the same pests as tomatoes, increasing the risk of infestation.
- Fennel: Fennel releases chemicals that can inhibit tomato growth.
- Potatoes: Potatoes and tomatoes are susceptible to the same diseases, increasing the risk of blight.
Tips for Successful Companion Planting With Tomatoes
- Plan Your Garden Layout: Consider the growth habits of each plant and ensure they have enough space to thrive.
- Rotate Crops: Avoid planting tomatoes in the same spot year after year to prevent soil-borne diseases.
- Use Vertical Space: Grow vining plants like nasturtiums or borage on trellises to save space.
- Monitor for Pests: Even with companion planting, keep an eye out for pests and address issues early.
- Water Wisely: Ensure all companion plants have similar water needs to avoid over- or under-watering.
Conclusion
Companion planting with tomatoes is a simple yet effective way to boost your garden’s productivity and health. By incorporating plants like basil, marigolds, garlic, and borage, you can naturally deter pests, improve soil health, and even enhance the flavor of your tomatoes. Remember to avoid incompatible plants and plan your garden layout carefully for the best results.
Whether you’re a seasoned gardener or a beginner, companion planting is a rewarding practice that can transform your tomato garden. Give these 8 companion plants a try and enjoy a bountiful, flavorful harvest!