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Nasturtium Companion - Gardening Harmony With Perfect Plant Partners

The nasturtium companion, with its distinctive round leaves and vivid blossoms, not only adds a splash of color to the garden canvas but also plays a pivotal role in promoting overall plant health.

Alexander McCaslin
Jan 19, 2024437 Shares22989 Views
In the world of gardening, the concept of companion planting has gained significant attention for its ability to enhance the healthand productivity of crops. Among the myriad of companion plants, the humble nasturtium (Tropaeolum majus) stands out as an exceptional ally for gardeners.
This article explores the multifaceted benefits of nasturtium companionplanting, uncovering its role in pest management, soil enrichment, and fostering overall plant well-being.

What Is A Nasturtium?

 Water Droplets on Green Leaf
Water Droplets on Green Leaf
Nasturtiums are valued for their vibrant blossoms and distinctive foliage. Nasturtiums are reliable companion plants for flower and food gardens.
Nasturtium's edibility first attracts farmers, but they're typically surprised to learn that it can repel numerous plant pests. It may be due to aromatic compounds emitted by the plant throughout the growth season.
Nasturtium, like other companion plants, thrives in rows or interplanted between crops. Certain plants may suit nasturtiums better.

Why Grow Nasturtiums As Companion Plants?

Gardeners may maximize planting areas using companion planting. Polycultures use mutualism to grow multiple plant species together. Companion plants attract pollinators, trap nutrients, and help absorb nutrients.
Although the scientific basis of companion planting is unclear, many experienced gardeners swear by it. Diversity in companion gardens improves the backyard environment and plant health. As a gardener, understanding this notion may assist you in choosing bed composition and plant location. The annual nasturtium may be beneficial.

The Significance Of Nasturtium Companion Planting

Companion planting with nasturtiums (Tropaeolum majus) holds significant value for gardeners seeking a natural and holistic approach to cultivating a thriving garden.
The multifaceted benefits of incorporating nasturtiums into a garden ecosystem extend beyond their vibrant aesthetics, making them invaluable companions for various crops. Here's a closer look at the significance of nasturtium companion planting.

Natural Pest Management

Nasturtiums play a pivotal role in pest management through the release of mustard oils and other compounds that act as natural insect repellents. Planted alongside susceptible crops, nasturtiums create a protective shield, deterring pests such as aphids, whiteflies, and cucumber beetles.
It not only reduces the need for chemical pesticidesbut also fosters a healthier and more balanced garden environment.

Soil Enrichment And Nitrogen Fixation

Nasturtiums are renowned for their ability to fix nitrogen, forming a symbiotic relationship with nitrogen-fixing bacteria.
It enriches the soil with this essential nutrient, benefiting neighboring plants by providing a readily available source of nitrogen. As dynamic accumulators, nasturtiums also draw up nutrients from deeper soil layers, contributing to overall soil fertility and structure.

Complementary Pairings With Brassicas

The companionship between nasturtiums and brassicas, such as cabbage and broccoli, is particularly significant. Nasturtiums help protect brassicas from common pests like cabbage moths and soil-borne diseases.
This strategic pairing enhances the overall health of both plant groups, illustrating the synergy that can be achieved through thoughtful companion planting.

Biodiversity And Beneficial Insects

Nasturtiums act as insectary plants, attracting a diverse array of beneficial insects. Ladybugs, lacewings, and predatory beetles are drawn to nasturtiums, creating a natural and sustainable pest control system.
The increased biodiversity in the garden contributes to the resilience of the ecosystem, minimizing the risk of pest outbreaks and promoting a healthier balance between pests and their natural predators.

Pollinator Attraction And Improved Fruit Set

The vibrant and nectar-rich flowers of nasturtiums attract pollinators, including bees and butterflies. It is particularly significant for fruit-bearing crops, as increased pollination leads to improved fruit sets and higher yields.
Nasturtiums act as floral allies, enhancing the reproductive success of neighboring plants and contributing to the overall productivity of the garden.

Culinary Delight And Nutritional Diversity

Nasturtiums aren't just functional; they also bring a culinary dimension to the garden. Both the leaves and flowers of nasturtiums are edible, adding a peppery flavor to salads and other dishes.
Integrating nasturtiums into the kitchen not only enhances the culinary experience but also introduces nutritional diversity, as they are rich in vitamins A and C, along with antioxidants.

Aesthetic Appeal And Living Mulch

Beyond their functional benefits, nasturtiums contribute to the garden's visual appeal. The vibrant hues of their flowers and the distinctive shape of their leaves add ornamental value to the landscape.
Their sprawling growth pattern also serves as a living mulch, shading the soil and preventing excessive moisture loss while suppressing the growth of weeds.
Orange Flower in Bloom
Orange Flower in Bloom

What Plants Grow Well With Nasturtiums?

Nasturtiums (Tropaeolum majus) are versatile companion plants that can thrive alongside a variety of vegetables, herbs, and flowers. Here are some plants that grow well with nasturtiums, creating a harmonious and mutually beneficial garden environment:

Tomatoes (Solanum Lycopersicum)

Nasturtiums are excellent companions for tomatoes, helping to deter aphids and whiteflies that commonly affect tomato plants. The peppery scent of nasturtiums can act as a natural repellent against specific pests.

Cucumbers (Cucumis Sativus)

Planting nasturtiums near cucumber vines can help repel cucumber beetles, which are known to damage cucumber plants. The nasturtiums' pest-repelling properties contribute to a healthier cucumber crop.

Brassicas (Cabbage, Broccoli, Cauliflower)

Nasturtiums form a beneficial partnership with brassicas by deterring pests like cabbage moths. The mustard oils produced by nasturtiums can help protect brassicas from insect infestations and soil-borne diseases.

Beans And Peas

Nasturtiums, with their nitrogen-fixing abilities, make great companions for legumes like beans and peas. They enhance soil fertility by converting atmospheric nitrogen into a form that other plants can use, supporting the nutrient needs of leguminous crops.

Lettuce And Salad Greens

Nasturtiums can provide shade to delicate salad greens and lettuce while adding a peppery flavor to salads. Their sprawling nature creates a living mulch, helping to retain soil moisture and suppress weeds.

Herbs (Basil, Parsley, Dill)

Nasturtiums make attractive and functional companions for various herbs. Planting them alongside herbs like basil and parsley can enhance the overall aesthetic appeal of the garden. Additionally, nasturtiums may help repel certain herb-damaging pests.

Fruit Trees

Nasturtiums attract pollinators with their vibrant flowers, making them beneficial companions for fruit trees. The increased presence of bees and butterflies can enhance pollination, leading to improved fruit sets and higher yields.

Strawberries (Fragaria × Ananassa)

Nasturtiums can be planted near strawberry patches to attract pollinators and act as a living ground cover. Their sprawling growth helps shade the soil, preventing excessive moisture loss and suppressing weeds around strawberry plants.

Carrots (Daucus Carota)

Carrots can benefit from nasturtium companionship as the peppery scent of nasturtiums may deter carrot flies. Planting nasturtiums along the edges of carrot beds can act as a protective barrier against these pests.

Chard (Beta Vulgaris)

Nasturtiums provide a colorful and pest-repelling companion for chard. Their presence can help protect chard plants from aphids and other common garden pests, contributing to the overall health of the crop.

What Not To Plant With Nasturtiums?

Nasturtiums get along well with the majority of plants. Yet, there are a few plants that either hurt nasturtiums or don't thrive well in the same garden spot as these blooms.


Nasturtiums are among the many plants that fennel, a herb, isn't a good fit for. The reason is that fennel tends to limit the development of a lot of other plants. Your nasturtiums will grow less fully or produce fewer flowers if you put them in the same garden bed as these two plants.

Low Profile Plants

Some nasturtiums are invasive due to their rapid growth and ability to take over flower gardens. Overrun nasturtiums in your garden bed may block the sunlight that low-lying plants like ground covers need to thrive.
Be cautious about setting the nasturtiums in separate rows or trailing them away from low-growing plants like strawberries, creeping phlox, or dwarf species if you want to include them in your garden.
Blue Flowers Growing in the Grass With Green Leaves
Blue Flowers Growing in the Grass With Green Leaves

Benefits Of Nasturtium Companion

Companion planting with nasturtiums offers a myriad of benefits, contributing to the overall health and productivity of a garden. Here are several key advantages of integrating nasturtiums as companions:

Natural Pest Repellent

Nasturtiums release compounds, including mustard oils, that act as natural insect repellents. Planted near susceptible crops, they deter pests like aphids, whiteflies, and cucumber beetles. It reduces the reliance on chemical pesticides, promoting a more sustainable and environmentally friendly gardening approach.

Protection For Brassicas

Brassicas, such as cabbage and broccoli, often face challenges from cabbage moths and soil-borne diseases. Nasturtiums form a protective barrier, helping to deter these pests and enhance the overall health of brassica crops through their pest-repelling properties.

Biodiversity Enhancement

Nasturtiums attract beneficial insects such as ladybugs and predatory beetles. It increases biodiversity in the garden and creates a balanced ecosystem where natural predators help control pest populations. The presence of diverse insects contributes to a healthier and more resilient garden environment.

Improved Pollination

The vibrant and nectar-rich flowers of nasturtiums attract pollinators, including bees and butterflies. Planting nasturtiums near fruit-bearing crops enhances pollination, leading to improved fruit sets and increased yields. It is especially beneficial for gardeners seeking higher productivity from their fruiting plants.

Living Mulch And Weed Suppression

Nasturtiums, with their sprawling growth habit, act as a living mulch. They shade the soil, helping to retain moisture and reduce weed growth. This living mulch not only conserves water but also minimizes competition for resources among neighboring plants.

Culinary And Nutritional Value

Both the leaves and flowers of nasturtiums are edible, adding a peppery and slightly spicy flavor to salads and other dishes. Incorporating nasturtiums into the kitchen not only provides culinary variety but also introduces nutritional benefits. They are rich in vitamins A and C, making them a healthy addition to meals.

Aesthetic Appeal

Nasturtiums contribute to the visual appeal of the garden with their vibrant and colorful flowers. Their distinctive foliage adds ornamental value, enhancing the overall aesthetic of the landscape. This aesthetic contribution makes nasturtiums not just functional but also visually pleasing additions to the garden.

Encourages Sustainable Gardening Practices

By reducing the need for synthetic pesticides and fertilizers, nasturtium companion planting aligns with sustainable gardening practices. This eco-friendly approach fosters a balanced and resilient garden ecosystem while minimizing the environmental impact associated with conventional gardening methods.
A Branch With Pink Flowers on It
A Branch With Pink Flowers on It

Nasturtium Companion Planting Tips For Success

Companion planting with nasturtiums can be a game-changer in your garden, fostering a harmonious environment that promotes plant health and productivity. To ensure success in integrating nasturtiums as companions, consider the following tips:

Strategic Placement

  • Why - Place nasturtiums strategically to create a protective barrier around vulnerable plants.
  • How- Identify pest-prone areas or plants in your garden and plant nasturtiums as a border or intercrop.

Companion Planting Chart

  • Why - Create a companion planting chart to identify ideal pairings for nasturtiums.
  • How - Research compatible plant partners and plan your garden layout using a visual chart as a reference guide.

Consider Specific Pests

  • Why - Tailor your nasturtium placement based on prevalent pests in your region.
  • How - Identify common garden pests and position nasturtiums to deter or repel those specific insects.

Regular Pruning

  • Why - Control the spread of nasturtiums to prevent overshadowing or competition.
  • How - Regularly prune nasturtiums to maintain balance, allowing other companion plants to receive adequate sunlight and resources.

Incorporate Nasturtiums In Crop Rotation

  • Why - Utilize nasturtiums in crop rotation for soil improvement.
  • How - Include nasturtiums in your crop rotation plan, especially before planting nitrogen-demanding crops.

Optimize For Aesthetics

  • Why -Enhance the visual appeal of your garden by considering color combinations and placement.
  • How- Choose nasturtium varieties that complement the colors of neighboring plants for an aesthetically pleasing landscape.

Utilize Nasturtiums As Living Mulch

  • Why- Leverage nasturtiums to act as a living mulch, reducing soil erosion and suppressing weeds.
  • How - Allow nasturtiums to spread and cover the soil around companion plants, acting as a protective layer.

Monitor For Overcrowding

  • Why - Prevent overcrowding that may hinder the growth of other plants.
  • How- Regularly assess the density of nasturtiums and thin them out if necessary to maintain a healthy balance.

Integrate Culinary Harvests

  • Why - Enjoy the edible aspects of nasturtiums while harvesting from your garden.
  • How- Incorporate nasturtium leaves and flowers into your culinary creations for a peppery and flavorful addition.

Observe And Adapt

  • Why - Pay attention to how companion plants respond and adjust your approach accordingly.
  • How - Regularly observe the health and interactions of plants in your garden, making adjustments based on their performance.

FAQs About Nasturtium Companion

How Can Gardeners Optimize Nasturtium Companion Planting For Success?

Strategic placement, mindful pruning, and incorporating nasturtiums in crop rotation are essential strategies for success. Creating a companion planting chart and adapting it based on garden observations further enhances the effectiveness of nasturtium companionship.

Can I Grow Nasturtium With Rosemary?

Nasturtiums prevent pests and provide brightness to the landscape with their brilliant blossoms. They grow similarly to rosemary, making them wonderful companion flowers.

Where Is The Best Place To Plant Nasturtiums?

Grow nasturtiums in well-drained, wet soil. First, water the well till the plant is established, then water it regularly. Nasturtiums like colder conditions; therefore, cultivate them in partial shade (4-6 hours of light) in hotter areas to extend their growth season. In chilly areas, grow nasturtiums in full sun.

Can I Plant Nasturtium Next To Tomatoes?

Basil, chives, and nasturtiums are easy-to-grow tomato companions. They're tasty and beneficial and provide security and friendly neighbors for your tomato plants.

Which Plants Benefit Most From Nasturtium Companion Planting?

Brassicas, such as cabbage and broccoli, benefit significantly from nasturtium companionship. Nasturtiums protect these crops from pests like cabbage moths and contribute to soil health, fostering optimal growth.

Considering All Of This

The integration of nasturtium companion planting into your gardening practices offers a holistic approach to cultivating a thriving and sustainable garden. From acting as a natural pest deterrent to enriching the soil and promoting biodiversity, nasturtiums prove to be versatile allies in the quest for optimal plant health and yield.
As you embark on your gardening journey, consider the myriad benefits that nasturtiums bring to the table – or rather, to the garden – and witness the transformative impact of this unassuming yet powerful companion plant.
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