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13 Best Oregano Companion Plants – And 3 to Avoid

Gardening enthusiasts and herb aficionados alike understand the value of thoughtful plant pairings when cultivating a thriving and harmonious garden.

When it comes to the versatile herb oregano, this principle holds true as well.

Oregano, with its robust flavor and versatile uses, can greatly benefit from the company of certain companion plants, while others may hinder its growth and flavor development.

In this article, we’ll explore the art of companion planting specifically tailored to oregano, uncovering 13 perfect companion plants that can enhance its vitality, flavor, and pest resistance while also shedding light on what to avoid to ensure your oregano thrives to its fullest potential.

Best Oregano Companion Plants
Can I plant sage, oregano, basil, mint, thyme, and rosemary all in one long planter? – via Reddit

A Brief Insight into Oregano Plants

Oregano, scientifically known as Origanum vulgare, is a perennial herb native to the Mediterranean region, Southern Europe, and parts of Asia.

This aromatic herb boasts square stems, small oval-shaped leaves, and tubular flowers that vary in color from white to pink or purple, depending on the variety.

Oregano is a culinary herb that is renowned for its vast applications, particularly in Mediterranean and Italian cuisines. Its medicinal properties address various health concerns, including digestive and respiratory issues.

Its essential oils, primarily composed of carvacrol and thymol, lend not only flavor but also antimicrobial properties to this herb.

Best Conditions for Growing Oregano

Oregano is a hardy plant that thrives under specific growing conditions, making it a popular choice for home gardeners. To cultivate healthy oregano plants, providing them with the right environment is essential.

Oregano’s shallow root system prefers well-draining soil with good aeration, so loamy or sandy soil types are ideal. Additionally, it thrives in full sun, requiring at least six hours of direct sunlight daily. This herb is drought-tolerant, so it’s essential not to overwater, as soggy soil can lead to root rot.

While an oregano plant can be grown directly in the ground, it’s also well-suited for container gardening, allowing you to control soil quality and drainage more effectively. With these conditions met, oregano will flourish, providing a continuous supply of flavorful leaves for your culinary creations.

So, now that you have all the essential information about growing oregano, let’s move to the list of some great companion plants for oregano to maximize garden space.

Amazing Aspects of Companion Plants

  • Natural Pest Control

One of the most significant benefits of companion planting is its ability to naturally repel pests. Certain companion plants are natural insect repellents that emit odors or chemicals that repel common garden pests, reducing the need for chemical pesticides. For instant

  • Improved Pollination

Some companion plants attract pollinators like bees and butterflies, which are essential for the fertilization of many crops. Flowers such as lavender and strawberries are good companion plants that attract beneficial insects, ensuring better crop yields.

  • Weed Suppression:

Some companion plants have dense foliage that can shade out and suppress weeds, reducing the need for labour-intensive weeding. For example, planting ground cover plants like clover can help smother weeds.

  • Increased Yield:

Pairing certain plants can lead to increased overall garden productivity, as some combinations enhance growth and health.

10 Best Oregano Companion Plants

1- Strawberry

Strawberry Best Oregano Companion Plants
A strawberry plant with fruit – via Flickr

Strawberry plants are the best oregano companion plants, especially in a vegetable garden setting.

When planting oregano alongside strawberry plants, you create a dynamic duo that enhances both crops’ flavor and contributes to a healthier garden ecosystem.

Strawberries, with their low-growth habit and sprawling leaves, make an excellent ground cover that helps shade the soil around them. This shading effect is highly beneficial when planting oregano nearby, as it helps retain soil moisture and prevents weed growth.

Additionally, the aromatic presence of oregano can deter pests that commonly plague strawberry plants, such as spider mites and aphids.The combination of these two plants not only boosts each other’s vitality but also yields a bountiful harvest from your vegetable garden.

2- Tomatoes

Tomatoes Best Oregano Companion Plants
Grow tomatoes in the pot – via Reddit

Tomato plants make a great companion plant for oregano. Oregano’s aroma acts as a natural insect repellent, repelling pests like aphids and hornworms that often trouble tomato plants, while oregano attracts insects like parasitic wasps that will eat insects that feed on tomatoes. In this way, both the plants will be protected.

Oregano is a natural fertilizer for tomatoes, enriching the soil with essential nutrients and contributing to their overall health and vitality.

These two plants create a visually appealing combination, enhancing the aesthetic appeal of your garden. Oregano blooms in summer after the tomato blooms.

Related Post: The 17 Best Tomato Companion Plants

3- Pepper

Pepper Best Oregano Companion Plants
I planted oregano and a pepper plant in some store bought compost – via Reddit

Pepper plants, jalapenos or bell peppers can serve as excellent oregano companion plants in herb gardens. With their shared preferences for sunlight, soil, and water, these two plants coexist harmoniously, simplifying garden maintenance.

Pepper plants grow tall and can provide shade to oregano from full sun. While peppers attract insects, the strong aroma of oregano can discourage pests, resulting in a high yield of peppers.

4- Marjoram

Marjoram Best Oregano Companion Plants
Sweet Marjoram – via Flickr

Marjoram and oregano are close botanical relatives, both belonging to the Origanum genus, making marjoram a good companion plant in an oregano garden.

These two herbs share similar growth requirements, including well-drained soil and plenty of sunlight, making them compatible and easy to cultivate side by side.

Marjoram’s presence not only complements the flavour of oregano but also provides a visually pleasing combination in the garden with its lush green foliage and delicate flowers.

5- Lavender

Lavender Best Oregano Companion Plants
Lavender – via Pxfuel

Lavender (Lavandula) and oregano plants together make the best oregano companion plants.

The two herbs produce a strong fragrance and act as a natural deterrent, repelling common garden wildlife like deer, rabbits, squirrels, etc., safeguarding neighbouring plants’ well-being.

Additionally, lavender’s vibrant purple or blue blooms are a magnet for beneficial pollinators, such as bees and butterflies, enhancing the overall pollination of nearby oregano and boosting herb production.

6- Sage

Sage Best Oregano Companion Plants
garden sage, peppermint, lemon thyme and oregano – via Reddit

Sage is another best oregano companion plant as they both are members of the mint family and share similar growth habits.

These aromatic herbs serve as a powerful deterrent against a range of common garden pests, thus safeguarding the well-being of oregano and other herbs in the herb garden.

By promoting biodiversity and creating an aromatic haven, this pairing exemplifies the essence of companion planting, fostering a garden that thrives both in terms of beauty and functionality,

7- Rosemary

Rosemary Best Oregano Companion Plants
Basil, Mint, Rosemary, and Oregano – via Reddit

Rosemary (Rosmarinus officinalis) pairs exceptionally well with oregano and can ranked as one of the best oregano companion plants in the garden. Both rosemary and oregano thrive in well-drained soil and full sun, making them well-suited for co-planting in garden beds or containers.

Their aromatic qualities make them formidable partners in pest control. Rosemary’s strong scent can deter a range of garden pests, including aphids and flea beetles, which might otherwise target oregano.

8- Cucumber

Cucumbers (Cucumis sativus) and oregano, when cultivated together in the garden, form the best oregano companion plants that contribute to a flourishing garden environment.

Companion planting oregano alongside cucumber vines is an ideal strategy for a productive herb garden. Both oregano and cucumbers thrive in similar conditions, including the need for full sun and well-draining soil.

Furthermore, oregano’s aromatic qualities play a crucial role in companion planting by naturally deterring pests like cucumber beetles, which are known to target cucumber plants. This creates a protective shield for the cucumbers, reducing the risk of infestations without the need for chemical pesticides.

9- Lemon balm

Lemon balm Best Oregano Companion Plants
basil, lemon balm, oregano, and okra – via Reddit

When talking about oregano companion plants, we can’t forget Lemon balm, scientifically known as Melissa officinalis, can indeed serve as one of the best oregano companion plants for in the garden.

This oregano companion, lemon balm, has the quality to tone down oregano as it grows upright, while the oregano’s roots oregano are relatively shallow and spread out horizontally, which makes them compatible with each other. Both lemon balm and oregano thrive in well-drained soil with good aeration.

When oregano is left unchecked, it can cover the whole garden bed. So, growing lemon balm as an oregano companion plants can be a great decision.

10- Basil

Fresh green basil plant for healthy cooking, herbs and spices
Fresh green basil plant for healthy cooking, herbs and spices – via Flickr

Basil (Ocimum basilicum) is a one of the natural and highly compatible oregano companion plants in a herb garden, offering several advantages that enhance the health and productivity of both herbs.

The synergy between basil and oregano is rooted in their shared growth requirements and the culinary and pest-repelling benefits they bring to one another. Oregano basil companionship can be the best as planting oregano with tall, bushy basil save the oregano plant from excessive heat and repels pests.

Some Other plants to opt as oregano companions

  • Water Melon

    Oregano can help deter pests that may affect watermelon plants, while the watermelon helps provide shade and space to climb, making them beneficial companions plants.

  • Thyme

    Thyme shares similar growth habits and conditions with oregano, making it a suitable companion. These two herbs can create a fragrant and visually appealing garden combination.

  • Grapes:

    Oregano can contribute to pest control around grapevines and enhance the overall health of the grape plants.

  • Asparagus:

    Oregano’s aromatic properties can help deter pests from asparagus plants, promoting a healthier asparagus crop.

  • Beans:

    It can assist in repelling pests that commonly affect bean plants, such as aphids and bean beetles.

  • Cabbage:

    Oregano can be a protective companion for cabbage by deterring cabbage moths and other pests.

  • Tarragon:

    Tarragon and oregano share similar growth habits and can complement each other in the garden.

3 Worst Oregano Companion Planting

1- Chives

When choosing oregano companion plants, chive may not be the right choice. While both herbs have their culinary merits, several factors should be taken into account.

Chives possess a robust growth habit and can become quite vigorous, potentially overshadowing oregano with their dense clumps of tubular leaves. This can result in competition for sunlight and air circulation, affecting the overall health and growth of oregano.

2- Lettuce

Lettuce (Lactuca sativa) is generally not considered an ideal oregano companion plant.

While both lettuce and oregano have their merits, their differing growth habits, resource requirements, and susceptibility to common garden pests make them less compatible companions.

One of the primary reasons why lettuce may not be the best companion for oregano is the disparity in their growth habits. Lettuce typically has a compact and low-growing habit, while oregano tends to sprawl and spread.

This difference in growth patterns can lead to competition with nearby oregano planted for sunlight, space, and nutrients, potentially compromising the overall health and productivity of both plants.

3- Mint

Mint (Mentha) is generally not considered a suitable companion plant for oregano due to its aggressive growth tendencies and the potential for it to disrupt the harmony of the garden.

One of the key reasons to exercise caution with mint plants as an oregano companion plants is its invasive nature. Plant mint spreads rapidly through underground runners up to 2 feet, making it a formidable competitor that can easily overtake nearby plants, including oregano.

This invasive growth habit, combined with the differing growth patterns of oregano and mint, can lead to overcrowding and resource competition. Also, it requires moist soil rather than sandy soil and shady areas to grow.

Given these challenges, it is advisable to plant mint in a separate container or designated garden area to prevent it from encroaching on other herbs.

When considering companion plants for oregano, choosing herbs and plants that align with its growth habits and complement its characteristics for a more harmonious and productive garden is essential.


In conclusion, selecting companion plants for oregano can greatly benefit your garden, providing a harmonious blend of beauty, functionality, and flavour.

Now, that you have got the range of options of the best oregano companion plant to choose from, you can easily decide which is the best for your garden.

By strategically pairing oregano with compatible companions like basil, rosemary, or thyme, you not only enhance your garden’s overall health and pest resistance but also unlock culinary potential, creating dishes bursting with flavour.

Companion planting is a dynamic practice that brings together the art of gardening and the science of ecosystem management.