If you’ve been gardening for a while, you know it’s not just about planting seeds and hoping for the best. The real magic comes from understanding how plants work together.

Over the years, I’ve learned that certain plants thrive when paired with the right companions. Companion planting is an age-old gardening technique that lets you create a balanced ecosystem in your garden while boosting yields and protecting plants from pests.

Let me share my favorite pairings and why they work so well.

1. Tomatoes and Basil

If you grow tomatoes, you can’t go wrong with adding basil nearby. Basil’s strong scent repels pests like aphids, whiteflies, and mosquitoes, protecting your tomato plants.

Additionally, basil enhances the flavor of tomatoes, a benefit I’ve noticed when cooking with homegrown produce. I always plant basil at the base of my tomato plants, and they’ve never let me down.

2. Carrots and Onions

Carrots and onions are a dream team for your vegetable garden. Onions repel carrot flies, while carrots help deter onion flies. Their root systems grow at different depths, ensuring they don’t compete for nutrients.

Plus, they fit perfectly in a small garden space.

3. Corn and Beans

Corn provides a natural trellis for beans to climb, while beans fix nitrogen into the soil, benefiting the corn. I also like to add squash to the mix.

This “Three Sisters” method, used by Indigenous communities for centuries, creates a self-sustaining trio where squash’s large leaves act as mulch, keeping weeds at bay and retaining moisture.

4. Cucumbers and Nasturtiums

Nasturtiums are a vibrant addition to any garden and a perfect companion for cucumbers. They repel pests like cucumber beetles and aphids while attracting beneficial insects like bees and butterflies.

Nasturtiums also serve as a “trap crop,” luring pests away from your cucumbers.

5. Lettuce and Radishes

Lettuce and radishes complement each other beautifully. Radishes act as a trap crop, drawing pests away from your lettuce, while lettuce provides shade for radishes, keeping their roots cool.

6. Peppers and Marigolds

Marigolds are one of my go-to companions for peppers. They release a substance from their roots that repels nematodes, tiny pests that attack pepper roots.

Their bright flowers also deter aphids and beetles while attracting pollinators to your garden.

7. Strawberries and Spinach

Strawberries and spinach grow well together because they don’t compete for resources.

Spinach provides ground cover, which keeps the soil cool and retains moisture for strawberries. Meanwhile, strawberries’ low profile doesn’t overshadow spinach, allowing both to thrive.

8. Broccoli and Dill

Dill attracts beneficial insects like ladybugs and parasitic wasps, which prey on aphids and caterpillars that often attack broccoli.

I’ve also noticed that dill enhances the flavor of broccoli when grown nearby.

9. Zucchini and Borage

Borage is a powerhouse companion plant. Its star-shaped blue flowers attract pollinators, essential for zucchini to produce fruit.

Borage also repels pests like squash bugs and cucumber beetles. Plus, its leaves can be composted for added nutrients.

10. Beans and Rosemary

Rosemary’s aromatic oils deter bean beetles and other pests, protecting your beans from infestations. Meanwhile, beans enrich the soil with nitrogen, benefiting rosemary and other nearby plants.

11. Eggplants and Thyme

Thyme is a fragrant herb that repels flea beetles, which are common pests for eggplants.

I plant thyme around my eggplants to act as a natural barrier, and the results have been fantastic, healthy leaves and larger fruits.

12. Potatoes and Horseradish

Horseradish is a strong deterrent for pests like Colorado potato beetles. Planting it alongside potatoes protects them from damage while giving you a dual harvest of these versatile crops.

13. Beets and Garlic

Garlic’s sulfur compounds repel aphids and other pests that often attack beets. The two plants grow harmoniously, making them an excellent pairing for small gardens.

14. Melons and Mint

Mint’s strong scent confuses and deters pests like ants and aphids, which can harm melons.

However, since mint spreads quickly, I recommend planting it in a container near your melons to prevent it from overtaking the garden.

15. Kale and Calendula

Calendula attracts beneficial insects like hoverflies and ladybugs, which feed on aphids and other pests that target kale. It’s a natural pest control strategy that also adds beauty to your garden.

16. Garlic and Roses

Roses may seem unrelated to vegetable gardens, but pairing them with garlic can be a game-changer. Garlic repels aphids, spider mites, and other pests, keeping your roses healthy and vibrant.

17. Spinach and Beans

Spinach benefits from the nitrogen fixed by beans, making this pairing a nutrient-rich combination for your soil and plants. Both thrive together, even in compact garden spaces.

18. Sunflowers and Cucumbers

Sunflowers act as a living trellis for cucumbers to climb, saving space and creating a stunning vertical garden. Their shade also protects cucumbers from excessive heat.

19. Parsley and Asparagus

Parsley attracts predatory insects like ladybugs, which keep asparagus beetles at bay. Meanwhile, asparagus doesn’t overshadow parsley, allowing it to flourish in the same bed.

20. Tomatoes and Nasturtiums

This pairing is a game-changer. Nasturtiums deter pests like aphids and whiteflies from attacking your tomatoes. They also add a vibrant touch to the garden with their trailing vines and colorful blooms.