Can You Plant Marigolds Next to Tomatoes?

Many gardeners believe in the power of companion planting, the idea that certain plants grown together can have beneficial effects on each other. One popular combination is marigolds and tomatoes. But can you really plant marigolds next to tomatoes?

The Benefits of Planting Marigolds with Tomatoes

Marigolds are believed to have several benefits when planted with tomatoes:

Pest control: Marigolds contain a compound called thiophenes which repels certain pests, including tomato hornworms and whiteflies.

Attracting beneficial insects: Marigolds also attract beneficial insects, such as ladybugs and lacewings, which feed on harmful pests like aphids and spider mites.

Improving soil: Marigolds produce a chemical called alpha-terthienyl, which helps to suppress soil-borne diseases like root-knot nematodes.

Complementing tomatoes: Marigolds are a colorful addition to the garden and can help to bring out the best in the flavor of ripe tomatoes.

How to Plant Marigolds with Tomatoes

Planting marigolds with tomatoes is easy. Here are a few tips to keep in mind:

Choose the right marigolds: Look for French marigolds (Tagetes patula) or signet marigolds (Tagetes tenuifolia), as these are the most effective at repelling pests.

Plant in the same bed: Plant marigolds and tomatoes in the same bed, with the marigolds placed around the edge of the bed.

Keep them separate: Make sure to give each plant enough space and avoid planting marigolds too close to the tomato plants, as this can lead to crowding and competition for nutrients.

Water regularly: Make sure to water both the marigolds and tomato plants regularly, as they both need consistent moisture to thrive.

Harvest the marigolds: Deadhead marigolds regularly to keep them blooming throughout the growing season.

Other Considerations

While planting marigolds with tomatoes can have several benefits, there are a few things to keep in mind:

Not a cure-all: While marigolds can help to repel certain pests and improve soil, they are not a cure-all for all tomato problems.

Choose complementary plants: Marigolds are not the only companion plant that can benefit tomatoes. Consider planting other complementary plants, such as basil, parsley, or borage.

Consider the variety: Different varieties of tomatoes may have different needs and preferences when it comes to companion planting. Do some research on the variety you are planting to ensure that marigolds are a good match.

Conclusion

Overall, planting marigolds next to tomatoes can have several benefits, including pest control, attracting beneficial insects, and improving soil. With a little care and attention, you can enjoy a healthy and thriving garden full of delicious tomatoes and colorful marigolds.