Companion planting for yarrow is an experience-based observation developed over centuries. People have noticed that planting certain plants side by side has a positive effect on each other, increasing the quality and quantity of the harvest.
Companion planting is not set in stone and it is the least you can do for your plants. You can get the right care from the individual plant article. You can see the companion and the enemy plants of yarrow below.
Companion plants for yarrow | Enemy plants of yarrow |
---|---|
Oregano | Cucumber |
Thyme | Common sage |
Fennel |
Why does companion planting work?
Companion planting works due to several interconnected factors:
Pest Control: Certain plants emit natural chemicals or scents that repel pests, effectively acting as natural pest deterrents for nearby plants. This reduces the need for chemical pesticides and fosters a more balanced ecosystem.
Attracting Beneficial Insects: Some companion plants attract beneficial insects like ladybugs, hoverflies, and predatory wasps, which feed on common garden pests. This creates a natural form of pest control and helps maintain ecological balance.
Soil Improvement: Different plants have varying root structures and nutrient requirements. Companion planting can enhance soil health by reducing soil erosion, suppressing weeds, and improving nutrient uptake. For example, leguminous plants fix nitrogen in the soil, benefiting neighboring plants that require nitrogen for growth.
Competition Reduction: Companion planting can help reduce competition for resources such as water, sunlight, and nutrients by utilizing plants with complementary growth patterns and root structures. This allows for more efficient resource utilization and healthier plant growth.
Biodiversity and Resilience: Planting diverse species together increases biodiversity in the garden, which can enhance ecosystem resilience. A diverse ecosystem is better equipped to withstand pests, diseases, and environmental stresses compared to monocultures.
Maximizing Space: Companion planting allows gardeners to make the most of limited space by intercropping plants with different growth habits and maturity rates. This maximizes yield per square foot and promotes efficient land use.
Overall, companion planting capitalizes on the natural synergies between plant species, creating a thriving and sustainable garden ecosystem.
What are the companion plants of yarrow?
The following plants have positive effects on the growth of your yarrow. These plants can repel pests that damage your plants. These plants provide increased nutrition to the soil that your plants can use. Therefore, we recommend planting these plants next to your yarrow.

Oregano
Oregano grows in diverse soil conditions. Flourishing in well-drained, sandy or loamy soil with a pH range between 6.0 and 8.0. Full sunlight and occasional pruning nurture its flavorful foliage and compact growth. Oregano offers invaluable benefits to neighboring plants by repelling pests, attracting pollinators, and enhancing overall garden biodiversity.
Oregano isn’t just a kitchen staple; it’s a great garden buddy for yarrow too! Its strong scent helps keep pesky insects at bay, protecting yarrow from unwanted nibblers. Plus, oregano’s low-growing nature won’t crowd yarrow’s tall, airy blooms, letting them both thrive without competition. Together, they create a fragrant, pollinator-friendly patch that brings beauty and balance to the garden.



Thyme
Thyme grows sandy or loamy soil with a pH range between 6.0 and 8.0. Full sunlight and moderate moisture nurture its flavorful foliage and compact growth. Thyme provides invaluable benefits to neighboring plants by repelling pests, attracting beneficial insects, and enhancing overall garden biodiversity.
Thyme may be small, but it brings big benefits to yarrow. Its fragrant leaves help deter pests, making sure yarrow stays strong and healthy. Since thyme loves dry, well-drained soil—just like yarrow—these two make perfect partners, thriving side by side with little fuss. Plus, thyme’s delicate flowers attract helpful pollinators, making the garden a buzzing, blooming paradise!
What are the enemy plants of yarrow?
Planting these plants next to yarrow has a huge negative effect on the development of your plant. Growing enemy plants can appeal detrimental insects, change the taste of the grown plant and even consuming all of the nutrients and water from your yarrow. Because of these negative effects, we don’t recomment growing the plants below next to your yarrow.



Cucumber
Cucumbers thrive in diverse soil conditions. Flourishing in well-drained, loamy soil enriched with compost, they embody adaptability and freshness. Consistent moisture and sunlight support vigorous vine growth and abundant fruiting. Cucumbers extend general benefits to neighboring plants by shading the soil, conserving moisture, and attracting beneficial insects.
Cucumbers love water, and lots of it! Yarrow, on the other hand, prefers drier soil and doesn’t take kindly to all that extra moisture. If planted too close together, cucumbers can hog the water and leave yarrow struggling to stay healthy. It’s best to keep these two apart so they can both thrive in the conditions they love best.



Common sage
Common Sage grows in diverse soil conditions. Flourishing in well-drained, sandy or loamy soil. Full sunlight and moderate moisture nurture its aromatic foliage and sturdy growth. Common Sage provides invaluable benefits to neighboring plants by repelling pests, attracting beneficial insects, and adding culinary richness to the garden.
Common sage and yarrow might both be fragrant, but they don’t make the best neighbors. Sage likes to spread out and can crowd yarrow, competing for space, nutrients, and sunlight. This can leave yarrow feeling a bit smothered and struggling to grow its beautiful blooms. Better to plant these two in separate spots where they can each shine on their own!



Fennel
Fennel flourishes best in well-drained, loamy soil with a pH range between 6.0 and 7.0. Adequate sunlight and consistent moisture nurture its lush foliage and aromatic essence. Fennel extends numerous benefits to its garden companions by attracting beneficial insects like pollinators and predatory wasps, which help control pest populations. Additionally, its deep taproot can break up compacted soil, improving overall soil structure and promoting healthier root growth in nearby plants.
Fennel has a bit of a bad reputation in the garden, and for good reason—it doesn’t play well with others, including yarrow. It releases natural chemicals into the soil that can stunt the growth of nearby plants. Yarrow, which loves to flourish and spread, won’t be happy next to a plant that holds it back. Keep these two apart for a happier, healthier garden!