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The Ultimate Guide to Companion Planting with Nasturtium

companion planting with nasturtium

Are you tired of pests wreaking havoc on your garden? Perhaps it's time to try a different approach to gardening. Companion planting is a practice that involves growing different plants together to benefit each other. One such plant is the nasturtium, which not only adds beauty to any garden but also serves as an excellent companion plant.

Companion Planting with Nasturtium: What is it?

Companion planting involves planting different plants together in order to gain benefits from their interactions. Nasturtium is a popular companion plant because it has many benefits for other plants. It can help repel pests and attract beneficial insects like ladybugs and lacewings. Additionally, nasturtiums can improve soil health by fixing nitrogen, which is essential for plant growth.

Benefits of Companion Planting with Nasturtium

There are numerous benefits to companion planting with nasturtium, including:

1. Pest Control

Nasturtiums can help repel pests such as aphids, cucumber beetles, and squash bugs. These pests are notorious for damaging crops, so having nasturtiums nearby can help keep them at bay.

2. Attracting Beneficial Insects

Nasturtiums can attract beneficial insects like ladybugs, lacewings, and hoverflies. These insects feed on pests and help to control their populations, reducing the need for pesticides.

3. Soil Improvement

Nasturtiums fix nitrogen in the soil, which is essential for plant growth. This helps to improve soil health and can lead to higher crop yields.

4. Aesthetic Appeal

Nasturtiums are a beautiful addition to any garden. With their vibrant colors and unique foliage, they can add interest and texture to your landscape.

Companion Plants for Nasturtium

Nasturtiums can benefit many different plants when used as a companion. Here are some of the best companion plants for nasturtium:

1. Tomatoes

Tomatoes and nasturtiums are an excellent combination. Nasturtiums help repel pests that commonly attack tomatoes, like aphids and whiteflies. Additionally, tomatoes benefit from the nitrogen that nasturtiums fix in the soil.

2. Cucumbers

Cucumbers and nasturtiums make great companions because they both attract beneficial insects. Nasturtiums can also help to repel cucumber beetles, which can damage cucumber plants.

3. Beans

Beans and nasturtiums have a mutually beneficial relationship. Nasturtiums fix nitrogen in the soil, which is essential for bean growth. In return, beans provide support for nasturtiums to climb.

4. Radishes

Radishes and nasturtiums are another great combination. Nasturtiums help to repel flea beetles, which can damage radish crops. Additionally, nasturtiums can attract beneficial insects like ladybugs, which feed on pests that attack radishes.

How to Plant Nasturtiums as Companion Plants

Planting nasturtiums as companion plants is easy. Here are some tips to get you ed:

1. Choose the Right Location

Choose a location that gets plenty of sun and has well-draining soil. Nasturtiums prefer slightly acidic soil with a pH between 6.0 and 7.0.

2. Plant Nasturtium Seeds

Plant nasturtium seeds directly in the ground after the last frost. Space the seeds about 12 inches apart, and cover them with a thin layer of soil.

3. Water and Fertilize

Water your nasturtiums regularly, but be careful not to overwater them. Fertilize them with a balanced fertilizer once a month during the growing season.

4. Keep an Eye on Pests

Monitor your garden for pests and take action if necessary. If you notice pests attacking your plants, consider using organic pest control methods like neem oil or insecticidal soap.


1. How often should I water my nasturtiums?

Nasturtiums prefer moist soil, but be careful not to overwater them. Water them once a week, or more often if the weather is particularly hot and dry.

2. Can I grow nasturtiums in containers?

Yes, nasturtiums can be grown in containers as long as they have enough room to spread out. Choose a container that is at least 12 inches deep and wide.

3. Do nasturtiums attract bees?

Yes, nasturtiums can attract bees. However, they are more likely to attract other beneficial insects like ladybugs and lacewings.

4. How do I know if my soil is too acidic?

You can test your soil's pH with a soil test kit. If your soil has a pH that is below 6.0, it is considered acidic.

5. Can I eat nasturtiums?

Yes, nasturtiums are edible! They have a peppery flavor and can be used in salads or as a garnish.

Companion planting with nasturtium is a great way to improve your garden's health and reduce the need for pesticides. Nasturtiums offer many benefits to other plants, including pest control and soil improvement. By planting nasturtiums alongside your favorite crops, you can create a beautiful and thriving garden.

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