Why Plant Marigolds with Tomatoes

Marigolds are a popular flower that many gardeners use as an ornamental addition to their gardens. However, marigolds also have many practical benefits that make them an ideal companion plant for tomatoes. In this article, we will explore why planting marigolds with tomatoes is a smart gardening choice.

1. Nematode Control

Nematodes are tiny, microscopic worms that live in soil and can be a major problem for tomato plants. Nematodes can cause stunted growth, root damage and reduce the overall yield of a tomato plant. However, marigolds produce a substance called alpha-terthienyl, which is toxic to nematodes. Planting marigolds in close proximity to tomato plants can help to keep nematodes at bay and protect the roots of the tomato plants.

2. Pest Deterrent

Marigolds are also great for deterring pests that can damage tomato plants. The strong scent of marigolds can confuse pests, making it difficult for them to locate the tomato plants. In addition, marigolds produce a substance called limonene, which is toxic to many common garden pests. By planting marigolds alongside tomato plants, gardeners can reduce the amount of damage caused by pests and minimize the need for harsh chemical pesticides.

3. Soil Improvement

Marigolds are known to have a positive impact on soil health. They are considered to be a "biofumigant," which means they release chemicals that can help to combat soil-borne diseases and improve overall soil health. Marigolds also have a deep taproot system that can help to break up compacted soil, which allows for better water and nutrient retention. By planting marigolds with tomato plants, gardeners can improve the overall health and fertility of their soil, leading to stronger, healthier tomato plants.

4. Attract Pollinators

Marigolds are a great source of nectar and pollen for bees and other pollinators. By planting marigolds alongside tomato plants, gardeners can attract more pollinators to their garden, which can increase the overall yield of tomato plants. Many tomato varieties require cross-pollination to produce fruit, and having more pollinators in the garden can help to ensure that tomato plants produce a bountiful crop.

Conclusion

Planting marigolds with tomatoes is a simple and effective way to improve the health and yield of tomato plants. Marigolds can help to control nematodes, deter pests, improve soil health, and attract pollinators. By incorporating marigolds into their garden plans, gardeners can enjoy a healthy and vibrant garden that produces plenty of delicious, homegrown tomatoes.