Tomatoes are a real treat in any garden. But trust me, they can taste even better when you give them the right garden buddies.

When I started companion planting, I discovered that it not only makes my tomatoes grow better but also boosts their flavor to a whole new level.

So, in this blog post, I will discuss what I’ve learned about companion planting with tomatoes. Let me tell you why it’s such a big deal and how it can make your tomatoes grow better and taste amazing.

Along the way, I’ll introduce you to some fantastic plant pals for your tomatoes, like herbs, veggies, and flowers. Let’s get started!

Benefits of Companion Planting

1. Deterrent Plants for Common Tomato Pests

As a gardener who’s dealt with their fair share of tomato-loving pests, I can’t stress enough how helpful companion planting can be in keeping those critters at bay.

Certain plants naturally repel common tomato pests, acting as your garden’s protective shield.

For instance, marigolds have a strong scent that many insects find repulsive, making them excellent companions for tomatoes.

Planting marigolds nearby can deter nematodes and aphids, pests that target tomato plants.

Another useful partner in the battle against pests is basil. Its aromatic leaves add flavor to your dishes and help keep flies and mosquitoes away from your tomato patch.

Plus, basil and tomatoes have a friendly relationship that can improve each other’s growth.

2. It Attracts Beneficial Insects

Nature has its army of helpers, and by planting certain companion plants, you can recruit these beneficial insects to your garden.

Take nasturtiums, for example. These vibrant flowers are not just pretty; they also attract pollinators like bees and hoverflies.

These pollinators play a crucial role in fertilizing tomato flowers, ultimately producing more fruit. In addition, hoverflies are voracious predators of aphids, one of the tomato plant’s arch-nemeses.

3. It Contributes To Soil Health

Maintaining healthy soil is the foundation of a successful garden, and companion planting can significantly contribute to soil health.

Some plants, like legumes (peas and beans), have a remarkable superpower—they can capture nitrogen from the air and convert it into a form that plants can use.

This means that when you plant nitrogen-fixing plants near your tomatoes, they’ll help enrich the soil with this essential nutrient, promoting strong and vigorous tomato growth.

4. It Improves The Health Structure

The soil isn’t just about nutrients; its texture and ability to hold moisture matter, too.

That’s where certain companions like marigolds and calendula come into play. Their root systems help improve soil structure, making it looser and better at retaining moisture.

This is particularly helpful in preventing water stress for your tomato plants during dry spells, ensuring they have the moisture they need to thrive.

What Can Be Planted Next to a Tomato Plant?

1. Asparagus

Planting asparagus near your tomatoes can help keep nematodes at bay. These microscopic soil-dwelling pests can wreak havoc on tomato roots, but asparagus provides a natural deterrent.

2. Basil

With its fragrant leaves, Basil is not just a culinary delight but also an excellent companion for tomatoes.

It helps repel pests like flies and mosquitoes, ensuring a more peaceful tomato patch.

3. Beans

Beans are a tomato’s friend when it comes to fixing nitrogen in the soil. They enrich the soil with this essential nutrient, promoting robust tomato growth.

4. Borage

Borage is a pollinator magnet. Its bright blue flowers attract bees and other beneficial insects that will happily pollinate your tomato blossoms, producing more fruit.

5. Carrots

Planting carrots alongside tomatoes is a smart move. Carrots help break up the soil and improve drainage, preventing waterlogged roots and other moisture-related issues.

6. Celery

Celery is a natural pest repellent, keeping aphids and spider mites at bay. It’s like having tiny garden bodyguards for your tomatoes.

7. Chives

With their intense aroma, Chives help deter pests like aphids and spider mites. They also add a savory twist to your tomato dishes.

8. Garlic

Garlic is known for its pest-repelling properties. It helps keep aphids and spider mites away from your tomato plants, ensuring they stay healthy.

9. Lettuce

Lettuce is a natural shade and moisture retainer, protecting the soil around your tomato plants. It’s a win-win for both crops.

10. Marigolds

Marigolds are a great companion plant for tomatoes because they help repel pests like nematodes and whiteflies.

11. Mint

Mint is an excellent companion plant for tomatoes because it helps repel pests like ants and aphids.

12. Nasturtiums

Nasturtiums are a great companion plant for tomatoes because they help repel pests like aphids and whiteflies.

13. Onions

Onions are an excellent companion plant for tomatoes because they help repel pests like aphids and spider mites.

14. Peppers

Peppers are a great companion plant for tomatoes because they help repel pests like aphids and spider mites.

15. Radishes

Radishes are an excellent companion plant for tomatoes because they help break up the soil and improve drainage.

16. Rosemary

Rosemary is a great companion plant for tomatoes because it helps repel pests like mosquitoes and flies.

17. Sage

Sage is an excellent tomato companion plant because it helps repel pests like cabbage moths and carrot flies.

18. Thyme

Thyme is a great companion plant for tomatoes because it helps repel pests like cabbage worms and slugs.

19. Zucchini

Zucchini is an excellent companion plant for tomatoes because it helps repel pests like squash bugs and cucumber beetles.

What Plants Should Not Be Planted Next to Tomatoes?

While companion planting can work wonders for your tomato garden, it’s equally important to be aware of plants that might not make the best neighbors for your beloved tomatoes.

Some plants can hinder tomato growth, attract unwanted pests, or share common vulnerabilities. Here are five plants you should steer clear of when planting next to your tomatoes:

1. Cabbage and Brassicas (Broccoli, Cauliflower, Kale, etc.)

Members of the brassica family, including cabbage and its cousins, may not be the best companions for your tomatoes.

These plants can release substances that inhibit tomato growth, potentially stunting their development. To ensure your tomatoes thrive, keep them at a respectful distance from these brassicas.

2. Fennel

While fennel is a flavorful addition to many dishes, it can spell trouble for your tomato patch.

Fennel has a knack for attracting pests like aphids and slugs, which can then find their way to your tomatoes. To keep your tomatoes pest-free, avoid planting fennel nearby.

3. Dill

Dill’s aromatic foliage might be a culinary favorite, but it can attract an unwelcome guest in the garden—the tomato hornworm.

These voracious caterpillars can decimate your tomato plants. To prevent this, keep dill away from your tomato patch.

4. Potatoes

While tomatoes and potatoes share a family resemblance, they are also susceptible to many of the same pests and diseases.

Planting them too close together can create an environment where these common issues can spread more easily.

It’s best to separate your tomatoes and potatoes in the garden to reduce the risk of disease.

5. Corn

Corn and tomatoes might seem like a good pairing, but they have similar tastes when it comes to pests.

Both crops can attract similar insects and diseases. To avoid doubling your pest problems, it’s advisable to keep corn and tomatoes at a distance from each other in your garden.

6. Cucumber

You shouldn’t plant tomatoes next to cucumbers because planting together will increase the risk of issues like fungal infections and pest infestations due to their susceptibility to similar diseases and pests; also, when you plant these two crops together, there will be a clash of interests as they have different growth habits and needs.

Tomatoes tend to grow upright and tall, requiring support structures, while cucumbers have a sprawling and vining nature.

Planting Strategies for Tomato Companion Plants

A well-thought-out planting strategy can make all the difference in successful companion planting with tomatoes. Here are two essential strategies to consider:

A. Interplanting

1.      Arranging Companion Plants Around Tomatoes

Interplanting involves strategically placing companion plants around your tomato crop.

It’s like creating a harmonious neighborhood in your garden, where each plant contributes to the overall well-being of its neighbors.

When interplanting with tomatoes, keep these tips in mind:

• Choose companion plants that benefit tomatoes, such as deterring pests, improving soil health, or attracting pollinators. For example, basil can deter flies and enhance tomato flavor, while marigolds help repel nematodes.

• Consider the growth habits and spacing requirements of your tomatoes and their companions.

• Ensure each plant has enough room to grow without crowding or shading others. Proper spacing allows for efficient airflow and sunlight penetration.

• Experiment with different planting layouts. You can plant companion plants in rows of clusters or even scatter them throughout your tomato patch. The goal is to create an environment where they can mutually benefit from each other’s presence.

B. Succession Planting

1.      Rotating Companion Plants for Continuous Benefits

Succession planting involves rotating your companion plants to different garden areas in successive seasons.

This practice helps prevent soil depletion, reduces the buildup of pests, and maximizes the benefits of companion planting over time. Here’s how to make succession planting work for you:

• Move companion plants to a different part of your garden each season. For example, if you planted marigolds next to your tomatoes one year, consider relocating them to a different bed the following year.

• Group plants with similar nutrient and water needs together. This not only simplifies garden planning but also helps maintain soil health. For instance, you could rotate nitrogen-fixing beans with your tomatoes.

Consideration of Growth Habits and Spacing

Successful interplanting also involves understanding the growth habits of both your tomatoes and their companions. Here are some key considerations:

1. Tall vs. Short

Place taller companion plants (like sunflowers or corn) on your tomato patch’s north or west side to prevent shading. Shorter companions can go on the south or east side.

2. Root Depth

Be mindful of root depths. Some plants have deep roots (e.g., carrots), while others have shallower root systems (e.g., lettuce). Ensure that root systems won’t compete for resources by spacing them accordingly.

How To Schedule Planting for Optimal Results

Timing is crucial in succession planting. Coordinate your planting schedule to ensure a seamless transition between companion plants. Consider the following when scheduling:

1. Create a Planting Calendar

Create a planting calendar that outlines when to start seeds, transplant seedlings, and harvest. This calendar should account for your companion plants’ specific needs and growth rates.

2. Overlap The Crops

Aim for a slight overlap in the growth stages of companion plants. This ensures that as one group of companions nears the end of its lifecycle, the next set is ready to take its place.

FAQs

Can I Plant Tomatoes Close to Each Other?

Yes, you can plant tomatoes close to each other.

However, it is important to note that planting tomatoes too close together can lead to various problems, including increased competition for nutrients and water, increased risk of disease, and reduced air circulation.

Conclusion

As you prepare for your next tomato-growing season, remember that success is within reach. Carefully select the right companion plants like basil, marigolds, beans, and more.

You’re ensuring healthier and more flavorful tomatoes and building a resilient and diverse garden for the future.