How To: Guide to Companion Planting for Asparagus

We take great delight in growing asparagus in our garden and love the earthy flavors right from our own backyard. We’ve been growing asparagus for years and enjoy getting the early shoots each spring before many of the other vegetables are ready in the garden.

Learn how companion planting for asparagus allows you to unlock the potential of each plant in the garden, fostering a symbiotic relationship. In this guide, we will explore the world of companion planting asparagus to enrich the health and vitality of your garden.

At the Backyard Farming Connection, our journey into the realm of companion planting spans over a decade. Asparagus has proven to be a rewarding crop in the fertile soils of New Hampshire. Below, we’ll share everything we’ve learned about companion planting for asparagus.

Are you seeking more guides on cultivating your garden? Check out our growing guides.


Introduction to Companion Planting for Asparagus

For devoted gardeners, the robust earthiness of ripe asparagus marks the culmination of a successful growing season. Beyond their yummy spears, asparagus plays a lesser-known but vital role in the practice of companion planting.

Asparagus, with its tall fronds and intricate root system, engages with neighboring plants, offering advantages to both itself and its companions. By thoughtfully situating asparagus in your garden, you not only bolster the growth of other plants but also establish a natural defense against specific garden pests. Because asparagus is a perennial you will need to plan ahead and think carefully about how you will companion plant asparagus in your garden.

There are several reasons to consider companion planting for asparagus.

Firstly, it diminishes the dependence on chemical pesticides and fertilizers, fostering a balanced garden ecosystem that promotes overall well-being.

Secondly, these plant interactions can lead to a more abundant harvest, benefiting not only the asparagus but also the adjacent plants. With the right companions, your asparagus can flourish and yield even more of its flavorful spears.

In this article, we will give you easy to follow suggestions for companion planting asparagus.

Companion Planting for Asparagus

Benefits of Asparagus Companion Plants

Asparagus, with its savory spears and tall fronds, proves to be a valuable ally in the garden, making it a fitting companion for various other plants. Companion planting with asparagus provides several advantages:

Pest Attraction: Asparagus produces inconspicuous flowers that attract beneficial insects, serving as natural predators against common garden pests. By welcoming these allies, asparagus indirectly reduces the need for chemical interventions, fostering an organic and harmonious garden environment.

Pest Repulsion: While we savor asparagus, certain pests find them unpalatable. Gardeners have noted fewer pest issues, such as aphids, when asparagus is integrated into the garden landscape. This protection extends to neighboring plants, mitigating damage and promoting robust growth.

Ground Cover: Beyond their pest-repelling qualities, asparagus offers another hidden advantage. Its tall fronds act as a natural mulch, preserving soil moisture, suppressing weed growth, and enriching the soil as they decompose. Companion planting with asparagus enables you to harness this natural weed suppression and soil enrichment.

Weed suppression with asparagus is especially true when you plan this alongside a shorter and sprawling plant like nasturtium.

Nutrient Recycling: With its intricate root system, asparagus taps into nutrients from deeper soil layers often overlooked by other plants. As asparagus fronds decompose, they recycle these nutrients, benefiting the surrounding plants.

Companion Planting for Asparagus

Best Asparagus Companion Plant Options

In the world of companion planting, certain plants thrive alongside asparagus, mutually benefiting one another in various ways. Let’s explore some top contenders for asparagus companion planting:

TOMATOES: Asparagus and tomatoes make excellent companions. They complement each other’s growth habits and can enhance the overall health of both plants. Asparagus provides vertical support for tomatoes, while tomatoes help deter pests that affect asparagus.

MARIGOLDS: Marigolds, renowned for their strong scent, deter many common garden pests. Planting marigolds alongside asparagus can help protect it from pests and add a burst of color to your garden.

eco-friendly homestead
Companion Planting for asparagus and other crops: our garden in action

NASTURTIUMS: Nasturtiums not only add vibrant color to your garden but also help repel aphids and other pests. Planting nasturtiums near asparagus can safeguard it from unwanted visitors while enhancing the visual appeal of your garden.

ONIONS: Asparagus and onions complement each other well. Onions can help deter certain pests that affect asparagus, creating a mutually beneficial relationship.

Understanding these beneficial relationships empowers gardeners to strategically position their asparagus and their companions in the garden, creating a harmonious environment that promotes growth and protection.

Plants to Avoid Planting Near Asparagus

Just as some plants thrive alongside asparagus, others may not coexist harmoniously in their vicinity. These conflicts can arise due to factors like competition for nutrients or chemical incompatibilities. Knowing which plants to keep at a distance from your asparagus patch can significantly impact the overall health and productivity of your garden.

POTATOES: Potatoes and asparagus are not the best companions as they have high nutrient demands that can lead to competition and reduced growth for both.

CABBAGES: Members of the Brassica family, such as cabbage, may not be ideal neighbors for asparagus due to nutrient competition.

BEANS: While beneficial in some companion plantings, beans may not be the best choice to plant near asparagus due to potential competition for nutrients.

Using Companion Planting to Plan Your Garden

Once you have identified the best companion plants for asparagus, it’s time to incorporate this knowledge into your garden planning. Planning your garden with companion planting involves careful consideration of plant compatibility, growth habits, and pest management strategies.

Start by selecting the crops you want to grow and research their ideal companions and potential antagonists. Implement techniques like interplanting, where compatible crops are grown together, or creating beneficial plant groupings. Additionally, use companion plants strategically to deter pests or attract beneficial insects, reducing the need for chemical interventions.

Regular observation of your garden’s dynamics and adjusting your planting scheme accordingly will help foster a thriving, harmonious ecosystem that maximizes both yield and sustainability.

In most situations you will plant your asparagus and then fill in around the plants with annuals to help benefit the plants and supress the weeds.

Common Asparagus Companion Questions

To provide a comprehensive understanding of asparagus companion planting, here are answers to some common questions:


Yes, tomatoes and asparagus make excellent companions. They complement each other’s growth habits and can enhance the overall health of both plants.


Asparagus thrives in well-draining soil with full sunlight. While it can tolerate partial shade, it should not overshadow smaller neighboring plants. Avoid planting asparagus near crops with which it might compete for resources.


Yes, planting nasturtiums near asparagus can help repel aphids and other pests, providing protection and enhancing the aesthetic appeal of your garden.


Yes, asparagus and onions complement each other well. Onions can help deter certain pests that affect asparagus, creating a mutually beneficial relationship.

In conclusion, companion planting with asparagus offers a holistic approach to gardening that promotes healthy plant growth, pest management, and sustainable practices. By harnessing the synergies between asparagus and its companion plants, you can create a thriving garden filled with abundant harvests and natural beauty. Remember to adapt your garden plan based on your unique garden dynamics and needs, and your garden will flourish season after season.

Looking to learn more about Companion Planting? Studies show that, done correctly, companion plants attract the natural enemies of many garden pests.

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