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6 rhubarb companion plants and what you should avoid
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Companion planting for rhubarb 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 rhubarb below.

Companion plants for rhubarbEnemy plants of rhubarb
StrawberrySunflower
Broccoli
Onion
Asparagus
Cucumber
Beetrot

Why does companion planting work?

Companion planting works due to several interconnected factors:

  1. 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.

  2. 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.

  3. 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.

  4. 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.

  5. 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.

  6. 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 rhubarb?

The following plants have positive effects on the growth of your rhubarb. 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 rhubarb.

Strawberry

Strawberries grow in loamy soil with a pH range between 5.5 and 6.5. Full sunlight and consistent moisture nurture their delicate fruits and lush foliage. Strawberries provide invaluable benefits to neighboring plants by attracting pollinators, suppressing weed growth with their dense foliage.

Broccoli

Broccoli flourishes in diverse growing conditions. Thriving in well-drained soil enriched with organic matter, it adapts to pH levels ranging from slightly acidic to neutral. Adequate moisture and sunlight support vigorous growth and abundant yields. Belonging to the Brassicaceae family, alongside esteemed companions like kale and cabbage, broccoli embodies the natural abundance and beauty found within the garden's embrace.

Onion

Onions thrive in various soil conditions. Flourishing in well-drained, fertile soil—preferably loamy or sandy—with a pH range between 6.0 and 7.0. Partial sunlight and consistent moisture nurture their hearty foliage and bulb formation. Onions provide invaluable benefits to neighboring plants by deterring pests with their strong aroma and improving soil structure with their fibrous roots.

Asparagus

Asparagus, revered for its tender spears and nutritional prowess, stands as a stalwart sentinel in the realm of companion gardening. With a penchant for well-drained, sandy soil and ample sunlight, this perennial delight thrives in environments where winters are cold and summers are warm. As a symbol of grace and gastronomy, asparagus enriches both the palate and the garden landscape, embodying the essence of verdant vitality.

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.

Beetrot

Beetroots, celebrated for their earthy sweetness and nutrient-rich composition, thrive amidst fertile soil and ample sunlight. They prefer well-drained earth with a pH range of 6.0 to 7.0, ensuring optimal growth and development. Regular watering and loose soil encourage healthy root formation and vibrant foliage.

What should you not plant next to rhubarb?

Planting these plants next to rhubarb 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 rhubarb. Because of these negative effects, we don’t recomment growing the plants below next to your rhubarb.

Sunflower

Sunflowers thrive in fertile soil with a pH range between 6.0 and 7.5. Full sunlight and ample space nurture their towering stems and vibrant flowers. Sunflowers provide invaluable benefits to neighboring plants by attracting pollinators, enhancing garden aesthetics, and providing seeds for birds and wildlife. Belonging to the Asteraceae family, alongside esteemed companions like daisies and asters.