Companion Planting for Pest Control: Plants that Protect Each Other

Discover how to use companion planting to create a natural defense system in your garden.

← Back to Home
Marigold flowers as companion plants for pest control in a garden
Marigolds and other companion plants naturally repel pests and support a healthy garden ecosystem.

Companion planting is an age-old gardening technique where certain plants are grown together for mutual benefit. Some plants naturally repel pests, while others attract beneficial insects, creating a natural defense system that helps your garden thrive without chemicals. Here’s how to use companion planting to keep pests at bay and promote a healthier garden.

How Companion Planting Works

Certain plants have properties that repel insects or mask the scent of other plants, making it harder for pests to find their targets. Others attract beneficial insects that eat common pests. By strategically pairing plants, you can create a garden ecosystem that naturally supports itself.

1. Basil and Tomatoes

Basil is known to repel flies and mosquitoes, making it an ideal companion for tomatoes. Plus, it’s said to enhance the flavor of tomatoes when grown nearby!

2. Marigolds and Vegetables

Marigolds are famous for their pest-repelling properties. They emit a scent that deters nematodes and other harmful insects, making them a great addition to vegetable gardens.

3. Carrots and Onions

Carrots and onions make a perfect pair in the garden. The strong scent of onions deters carrot flies, while carrots break up the soil, helping onions grow.

4. Mint and Cabbage

Mint’s strong aroma deters pests like cabbage moths, which can wreak havoc on leafy greens. Just be careful—mint is known to spread, so it’s best planted in pots near cabbage or other cruciferous vegetables.

5. Nasturtiums and Squash

Nasturtiums act as a “trap crop,” attracting aphids and squash bugs away from your main plants. They can be planted around squash, cucumbers, and melons to reduce pest damage.

Conclusion

Companion planting is a simple yet powerful way to manage pests without chemicals. By pairing plants strategically, you’re not only protecting your garden but also promoting a healthy, balanced ecosystem. Try these companion pairings in your garden, and let nature do the work!