Nasturtium Companion Plants: A Comprehensive Guide

Are you tired of pests ravaging your garden? Are you looking for a natural way to keep them away without the use of toxic chemicals? Look no further than nasturtium companion plants! Nasturtiums are not only beautiful flowers that add color and flavor to your garden, but they also have incredible pest-repelling properties. In this article, we'll explore everything you need to know about nasturtium companion plants, from their benefits to how to plant them, and which plants pair well with them.

The Benefits of Nasturtium Companion Plants

Nasturtiums have been used as companion plants for centuries, and for good reason. Here are some of the benefits of planting nasturtiums in your garden:

Pest Repellent

One of the most significant benefits of nasturtium companion plants is their ability to repel pests. Nasturtiums contain mustard oil, which is toxic to many common pests such as aphids, whiteflies, and cucumber beetles. By planting nasturtiums near other plants, you can deter these pests from infesting your garden.

Attract Beneficial Insects

In addition to repelling pests, nasturtiums also attract beneficial insects such as ladybugs and hoverflies. These insects feed on harmful pests, making them an excellent addition to any garden.

Edible Flowers and Leaves

Not only are nasturtiums beautiful, but their flowers and leaves are also edible. Nasturtium flowers have a peppery flavor that can add a kick to salads and other dishes, while the leaves are milder and can be used in place of lettuce.

How to Plant Nasturtium Companion Plants

Now that you know the benefits of nasturtium companion plants let's talk about how to plant them.

When to Plant

The best time to plant nasturtiums is in the spring after the last frost has passed. Nasturtiums thrive in warm temperatures and full sun, so make sure to choose a spot with plenty of sunlight.

How to Plant

To plant nasturtiums, begin by preparing the soil. Nasturtiums prefer well-draining soil, so amend your soil with compost or sand if necessary. Once your soil is prepared, dig a hole for each seedling and plant it at the same depth it was growing in its container. Space the seedlings 8-12 inches apart.

Caring for Nasturtiums

Nasturtiums require minimal care once they are established. Water your plants regularly, but be careful not to overwater them as this can lead to root rot. Deadhead spent flowers to encourage new growth and remove any yellowing leaves.

Nasturtium Companion Plants

Now that you know how to plant nasturtiums let’s explore which plants pair well with them.

Tomatoes

Tomatoes and nasturtiums make an excellent pair. Nasturtiums repel aphids, which are a common pest for tomatoes. In addition, nasturtiums attract predatory insects such as ladybugs and hoverflies, which will help keep tomato pests under control.

Cucumbers

Cucumbers and nasturtiums are another great match. Nasturtiums repel cucumber beetles, which can cause significant damage to cucumber plants. In addition, the flowers of the nasturtium plant provide a climbing surface for cucumbers.

Radishes

Radishes and nasturtiums are natural companions. Both plants prefer similar soil conditions and can be planted together without any negative effects. In addition, nasturtiums attract beneficial insects that can help pollinate radish flowers.

Herbs

Nasturtiums pair well with many herbs, including basil, parsley, and chives. The flowers of the nasturtium plant provide a pop of color in herb gardens, while also repelling pests that can damage herbs.

Nasturtium Companion Planting Tips

Here are some additional tips to help you get the most out of your nasturtium companion planting:

Maintain Proper Spacing

Make sure to space your nasturtium plants properly to allow them to grow to their full potential. Overcrowding can lead to disease and pest problems, so make sure to give your plants plenty of room to spread out.

Rotate Your Crops

To prevent soil-borne diseases, avoid planting the same crops in the same spot year after year. Instead, rotate your crops each season to keep your soil healthy and fertile.

Choose Companion Plants Carefully

Not all plants make good companions for nasturtiums. Be sure to research which plants pair well with nasturtiums before planting them together.

Frequently Asked Questions

Q: Are nasturtiums easy to care for?

A: Yes, nasturtiums require minimal care once they are established. They prefer well-draining soil and plenty of sunlight but are otherwise low-maintenance.

Q: Can you eat nasturtium flowers?

A: Yes, nasturtium flowers are edible and have a peppery flavor that can add a kick to salads and other dishes.

Q: Do nasturtiums attract bees?

A: Nasturtiums are not known for attracting bees, but they do attract beneficial insects such as ladybugs and hoverflies.

Q: Can you plant nasturtiums in pots?

A: Yes, nasturtiums can be grown in pots as long as the pot is large enough for the plant to spread out. Make sure to use well-draining soil and water your plants regularly.

Q: How do nasturtiums help repel pests?

A: Nasturtiums contain mustard oil, which is toxic to many common pests such as aphids, whiteflies, and cucumber beetles.



In nasturtium companion plants are an excellent addition to any garden. They not only add color and flavor but also have incredible pest-repelling properties. By pairing nasturtiums with other plants, you can create a natural pest control system that will keep your garden healthy and thriving. With a little bit of research and planning, you can enjoy the benefits of nasturtium companion planting in your own backyard.