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What Not to Plant with Oregano: 19 Must-Have Companion Plants

Are you wondering what not to plant with oregano? Well, you’re in the right place! Discover the secrets of companion planting and how it can benefit your oregano’s growth and flavor. By strategically pairing oregano with parsley, lemon thyme, and rosemary, gardeners can maximize their garden space and create a harmonious ecosystem that promotes thriving cultivation.

Companion planting is like creating a dream team for your herb garden. It’s all about finding the perfect partners for your oregano, lemon thyme, rosemary, and parsley plants. Imagine the aroma of essential oils wafting through your vegetable garden as these herbs bloom alongside each other. But which plants make good companions for these gardeners’ favorites?

Whether it’s rosemary enhancing tomato plants or tarragon and parsley adding diversity to your garden, there are endless possibilities to explore. Not only will companion planting with these herbs provide practical benefits, but it also adds an element of fascination to your gardening journey.

So, let’s dive into this captivating world of companion planting and uncover the secrets behind successful parsley, savory, thyme, and tarragon cultivation. Get ready to transform your garden into a vibrant haven where different plants thrive together in perfect harmony!

what not to plant with oregano

What Not to Plant with Oregano? Advantages of Companion Planting for Oregano’s Growth and Flavor

Enhance Oregano’s Growth with Thoughtful Companions

To boost the growth of your herb garden, consider utilizing companion plants that provide shade or support. These companions can create a favorable environment for oregano, rosemary, and parsley by protecting them from harsh sunlight or strong winds. Some suitable options include using these companion plants in your vegetable garden as well.

  • Tall and leafy plants like sunflowers or corn can offer shade to young herb garden seedlings, such as rosemary and parsley.
  • Erect trellises or stakes near your herb garden to provide support for your oregano and other garden plants as they grow. Oregano is a good companion plant for tomato plants.

By strategically selecting different plants as companions in your herb garden, you can ensure that your oregano and tomato plants receive the ideal growing conditions they need to thrive.

Improve the Flavor Profile of Your Oregano with Compatible Companions

If you want to enhance the savory flavor of your oregano, choosing compatible companion plants such as parsley, beans, and lavender is crucial. Certain herbs and vegetables like parsley and beans can complement the taste profile of oregano, resulting in a more robust and flavorful harvest. Consider planting these compatible companions alongside your oregano in well-prepared soil.

  • Basil: This aromatic herb is an excellent companion plant for parsley and lavender. It pairs well with oregano and adds a delightful freshness to dishes.
  • Tomatoes: The tangy acidity of tomatoes complements the earthy flavor of parsley, making them excellent culinary companions. They thrive in well-drained soil and add a fresh burst of flavor to soups.
  • Whether sweet or spicy, peppers are a great companion plant for oregano in the kitchen. They enhance the savory notes of oregano and can be used in various dishes like soups. Additionally, peppers thrive in well-drained soil.

By strategically combining these flavorful companions with your oregano in the kitchen, you’ll elevate the taste of your soups and dishes to new heights. Plus, the right soil will ensure your plants thrive.

Boost Pollination Rates and Attract Beneficial Insects

Thoughtful companion planting not only benefits your oregano’s growth in the soil but also promotes pollination rates and attracts beneficial insects in the kitchen. Bees and other pollinators are essential for ensuring successful reproduction in many plants, including oregano soups. To attract these helpful creatures, consider planting oregano in your kitchen garden.

  1. Plant oregano companion plants nearby such as marigolds, lavender, and borage to attract insects and enhance the soil. These oregano blooms are known to attract pollinators.
  2. Avoid harmful pesticides and their negative impact on the soil and beneficial insects. Instead, opt for organic pest control methods to plant oregano in your kitchen.

By incorporating these companion plants and practices into your kitchen garden, you’ll create a welcoming habitat for insects, which will in turn improve the overall health of your oregano plants by enriching the soil and providing numerous benefits.

Increase Overall Plant Health and Disease Resistance

Implementing a diverse companion planting strategy is an effective way to increase the overall health and disease resistance of your oregano. By interplanting different species with oregano, you can create a balanced ecosystem that minimizes the risk of pests and diseases. Some suitable companions for this purpose include soil-enriching plants, beneficial insects, and kitchen herbs.

  • Marjoram: This close relative of oregano shares similar growth requirements and can help deter insects that target both plants. It is also beneficial for the soil in your kitchen garden.
  • Nasturtiums: These vibrant flowers act as natural repellents for insects, such as aphids, and other common garden pests. They are great oregano companion plants for your kitchen garden.
  • Chives: Chives, a plant commonly found in the kitchen, contain sulfur compounds that may help prevent insects and fungal diseases from affecting your oregano.
what not to plant with oregano

Best Companion Plants for Oregano to Enhance Growth and Flavor

Pair oregano with marjoram to create a flavorful herb combination in your garden.

Oregano and marjoram are like the dynamic duo of the kitchen. When planted together, these two herbs enhance each other’s flavors, creating a harmonious blend that will take your culinary creations to new heights. Marjoram has a sweeter and milder taste compared to oregano, which can be quite pungent on its own. By combining them, you’ll achieve a well-rounded flavor profile that will elevate any dish and keep insects away from your kitchen.

Here are some other reasons why pairing oregano and marjoram in your kitchen garden is a winning choice for plant lovers. These aromatic herbs not only enhance the flavor of your dishes, but they also naturally repel insects.

  • Both oregano and marjoram, two types of plants, have similar growth habits. They prefer full sun and well-drained soil, making them ideal companions for each other. These plants are also beneficial for controlling insects in the garden.
  • Pest control: Marjoram is known for its pest-repellent properties, particularly against insects like aphids. By planting it alongside oregano, you’ll naturally deter these unwanted visitors from wreaking havoc on your precious herbs.
  • Aesthetically pleasing: Oregano’s vibrant green plant leaves contrast beautifully with the delicate light green foliage of marjoram plant. Together, they create an eye-catching display in your garden bed or container.

Consider planting chives alongside oregano for added pest-repellent properties.

Chives are not only a tasty addition to various dishes but also serve as excellent companions for oregano. These slender green stalks pack both flavor and functionality when planted alongside your favorite herb. Here’s why chives make great partners for oregano:

  • Natural pest control: Chives contain sulfur compounds that act as natural insect repellents. Planting them near oregano helps keep pests like aphids and Japanese beetles at bay.
  • Beneficial pollinators: Chive flowers attract beneficial pollinators such as bees and butterflies to your garden. These pollinators play a crucial role in ensuring the health and productivity of your oregano plants.
  • Complementary flavors: The mild onion-like flavor of chives complements the earthy and slightly bitter taste of oregano, making them a perfect combination for enhancing the taste of various dishes. From soups and salads to sauces and marinades, these two plants add depth and complexity.

Complement the aromatic qualities of oregano with lavender as a beautiful garden duo.

If you’re looking to create a visually stunning herb garden while enhancing the aromatic qualities of your oregano plant, consider pairing it with lavender. This enchanting duo not only pleases the eyes but also delights the senses with their delightful scents. Here’s why lavender makes an excellent companion for oregano plants.

  • Fragrant harmony: Oregano’s robust plant aroma blends harmoniously with lavender’s calming scent, creating an olfactory symphony in your garden space.
  • Attract beneficial insects: Lavender flowers, along with oregano companion plants, are irresistible to bees, butterflies, and other beneficial insects.
what not to plant with oregano

Avoid Planting Sage with Oregano: Incompatible Companions

Beware of Competition for Resources

It’s important to consider the compatibility of plants in your garden. Sage and oregano, both aromatic and flavorful plants, may not make the best neighbors. These two herbs can compete for essential resources like sunlight and nutrients, potentially hindering each other’s growth.

Sage is a robust herb that thrives in full sun and well-drained soil. It has a reputation for being a bit of a bully. Its vigorous growth habit can overshadow neighboring herbs, including oregano. If you want your oregano to flourish, keeping sage at a distance is crucial.

The Allelopathic Nature of Sage

One of the reasons why sage can be detrimental to nearby herbs like oregano is its allelopathic nature. Allelopathy refers to the ability of certain plants to release chemicals that inhibit the growth of other plants around them. Sage contains compounds that have been found to suppress the growth of various species, including oregano.

The allelopathic effects of sage are believed to be caused by volatile oils present in its leaves and stems. These oils can interfere with the germination and development of neighboring plants, leading to stunted growth or reduced yields. To ensure your oregano reaches its full potential, it’s best to keep sage separate from your oregano patch.

Preventing Stunted Growth and Reduced Yields

In order to avoid any potential damage caused by sage’s allelopathic effects on oregano, it is advisable to plant them at a safe distance from each other. This will help prevent competition for resources and allow both herbs to thrive independently.

Here are some tips for keeping sage away from your precious oregano:

  1. Maintain a minimum distance of three feet between sage and oregano plants.
  2. Use physical barriers like pots or raised beds to create separation between oregano and its companion plants.
  3. Regularly prune sage to control its growth and prevent it from encroaching on your oregano patch.

By following these precautions, you can ensure that your oregano grows vigorously without being hindered by the presence of sage.

Sage and Oregano: Best Enjoyed Apart

While both sage and oregano have their own unique qualities and culinary uses, it’s generally best to avoid combining them in close proximity. Instead, consider planting them in different areas of your garden or even in separate containers.

Not only will this prevent any potential competition for resources, but it will also allow you to fully appreciate the distinct flavors and aromas of each herb. Whether you’re using sage for savory dishes or oregano for Italian cuisine, keeping them apart ensures that their individual characteristics shine through.

Cruciferous Vegetables (Brassicas): Unsuitable Companions for Oregano

It’s essential to consider its companions carefully. One group of plants that you should avoid growing near oregano is cruciferous vegetables, also known as brassicas. These include popular crops like broccoli and cabbage. Here’s why these veggies don’t make the best neighbors for your oregano:

  1. Incompatible Growth Habits: Oregano has a spreading nature, with its stems and leaves reaching out in all directions. This growth habit can overshadow and hinder the growth of neighboring brassicas. The dense foliage of oregano may block sunlight from reaching the cruciferous vegetables, affecting their overall development.
  2. Prevent Nutrient Competition: Another reason to keep oregano separate from cruciferous crops is to prevent potential nutrient competition. Oregano is a vigorous herb that requires a good amount of nutrients from the soil to thrive. When planted too close together, both oregano and brassicas may compete for vital resources like water and nutrients, leading to stunted growth or nutrient deficiencies.

To ensure optimal growth for both oregano and brassicas, maintain a sufficient distance between them in your garden layout.

  1. Maintaining Distance: To give each plant enough space to flourish independently, provide at least 18 inches of separation between oregano and cruciferous vegetables such as broccoli or cabbage. This distance allows proper air circulation around each plant while minimizing any negative impacts on their growth.
  2. Companion Planting Alternatives: If you’re looking for suitable companions for your brassica family members or other vegetables, consider planting them alongside compatible plants such as:
  • Asparagus: Asparagus offers vertical height without competing with the low-growing nature of oregano.
  • Eggplant: The tall and upright growth of eggplant complements oregano well.
  • Carrots: Carrots have a root system that doesn’t interfere with oregano’s spreading habit, making them an ideal companion.
  • Celery: The compact nature of celery works harmoniously alongside oregano without obstructing its growth.
  1. Pest Control: While oregano is known for its pest-repelling properties, it may not be as effective against all harmful insects that target brassicas. For instance, cabbage moths and cabbage worms can still pose a threat to your cruciferous vegetables even if you have oregano nearby. To combat these pests, consider incorporating other companion plants like chives or marigolds, which are known to deter harmful insects such as squash bugs and flea beetles.


In conclusion, when planting oregano, it is important to consider the companions that will enhance its growth and flavor. While companion planting can offer numerous benefits for oregano, there are certain plants that should be avoided.

Sage is an incompatible companion for oregano. These two herbs have different growth habits and can compete for resources, hindering their overall development. It is best to keep them separate in your garden to ensure optimal growth for both plants.

Cruciferous vegetables such as broccoli, cauliflower, and cabbage are unsuitable companions for oregano. These vegetables release compounds that can inhibit the growth of neighboring plants like oregano. It is advisable to plant them separately to avoid any negative effects on your oregano crop.

To make the most out of your oregano’s growth and flavor, consider planting it alongside compatible companions such as basil, thyme, and marjoram. These herbs not only complement each other in terms of flavor but also provide mutual benefits by deterring pests and attracting beneficial insects.

Incorporating companion plants into your garden can create a harmonious environment where each plant thrives. By following these guidelines on what not to plant with oregano, you can ensure that your herb garden flourishes with vibrant flavors and healthy foliage.

So go ahead and experiment with different combinations of herbs and vegetables in your garden! With the right companions by its side, your oregano will reach its full potential while providing you with a bountiful harvest of aromatic leaves.


Can I plant tomatoes with oregano?

Yes! Tomatoes are excellent companions for oregano as they share similar growing conditions and repel pests like aphids when planted together.

What about planting mint with oregano?

Mint is not recommended as a companion for oregano due to its invasive nature. Mint tends to spread rapidly and can overpower the growth of oregano.

Can I plant rosemary with oregano?

Absolutely! Rosemary and oregano are compatible companions, both enjoying similar growing conditions and complementing each other in terms of flavor.

Are there any flowers that go well with oregano?

Yes, planting flowers like marigolds, nasturtiums, or calendula alongside oregano can help attract pollinators and deter pests, creating a more vibrant and pest-resistant garden.

Can I grow peppers with oregano?

Peppers make great companions for oregano. They share similar sun and water requirements while also benefiting from the pest-repellent properties of oregano.

Should I avoid planting onions with oregano?

Onions and oregano can be planted together without any issues. In fact, onions can help deter pests that may harm your oregano plants.

Can I plant lettuce with oregano?

While lettuce doesn’t have any negative effects on oregano, it is not an ideal companion as it requires more shade than what is typically suitable for growing healthy oregano plants.

What vegetables should I avoid planting near my oregano?

Apart from cruciferous vegetables like broccoli, cauliflower, and cabbage mentioned earlier, it is best to avoid planting potatoes near your oregano as they compete for resources and may hinder each other’s growth.

Can I grow cilantro alongside my oregano plants?

Cilantro is a suitable companion for oregano. It thrives in similar conditions and its pungent aroma can help repel pests that might affect your herbs.