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Best & Worst squash companion plants to grow in your garden

squash companion plants

What Is Squash?

Companion planting is a great way to improve the health and vitality of your plants, but it’s important to be aware of which plants should not be grown together. Winter and summer squash are often companion planted, but this can lead to problems. Some plants should never be planted near squash because they will compete for nutrients or space, and rotating crops every year is essential for preventing pests and diseases from building up in the soil.

What Is Companion Planting?

Companion planting is a gardening technique where two or more different plants are grown together in order to benefit from each other. Companion planting can help to control pests and disease populations, as well as optimize the garden ecosystem. It is a common practice that has been used for centuries.

Benefits of Companion Planting

Companion planting is a type of gardening where plants are grown together in order to achieve certain benefits. There are many different types of companion planting, but some of the most common include using garlic and borage, repelling insects with specific plants, and attracting beneficial insects. Additionally, companion planting can help to shade other plants from the sun or wind.

Repel insect pests

Insect pests can be a significant problem for squash plants. One way to help repel these pests is by companion planting with other plants that have an aroma that pests do not like. Another method is to use a groundcover to help preserve nutrients and moisture in the soil. This will also help attract pollinators to the garden.

Attract beneficial insects

In addition to the benefits of companion planting mentioned earlier, like improved soil health and decreased vulnerability to pests, companion planting can also enhance the taste and flavor of your produce. Some good companion plantings for zucchini and squash include beans, peas, and cucumbers. Additionally, pollinators like bees are attracted to these plants, so planting them can help support bee populations. Finally, living mulch (a layer of organic matter spread over the soil) attracts predators like lacewings and big-eyed bugs that prey on common garden pests.

Improve soil nutrients

Growing a variety of crops together can help improve the soil’s nutrients. This is because different crops use different nutrients and when they are grown together, it creates a synergy where the plants nourish each other. For example, beans and peas don’t take nitrogen from the soil, so they help winter squash.

faster growth and better taste

Companion planting is a technique where two or more plants are planted close together in order to benefit from one another. One of the most popular companions’ planting techniques is The Three Sisters, which consists of squash, corn, and beans. Squash shades the soil suppresses weeds and provides nitrogen for other plants. Corn is a living trellis for beans and squash, and the beans fix nitrogen from the atmosphere. Rhizobia bacteria live in bean roots and fix nitrogen from the atmosphere, making this an especially beneficial combination.

The Three Sisters (beans, corn, and squash)

The three sisters are a trio of plants that have been used for centuries by Native Americans and continue to be popular today. The three sisters are beans, corn, and squash and they are considered to be top-notch crops. Each of these plants has different requirements in terms of moisture and soil fertility, but they all benefit from being grown together. The beans fix nitrogen in the soil, which helps both the corn and the squash.

Best Companion Plant for Squash


Nasturtiums are a type of flowering plant that is in the cucurbit family. This family includes plants like pumpkins and squash. Nasturtiums have been shown to be effective at repelling flea beetles, making them a great companion plant for these crops. After the flowers die off, the nasturtium can be harvested and used in preparing dishes. Nasturtium is also a pollinator-friendly specimen that features lovely funnel-shaped flowers in shades of red, orange, and yellow.

Nasturtiums are flowering plants that can be found in gardens all over the world. They bloom all season long, from spring to autumn, and their brightly-colored blooms attract butterflies and bees. Nasturtiums are also useful as a trap crop; they can be used to lure pests away from other plants in the garden. Additionally, nasturtium leaves are attractive to aphids, so using them as a border around your vegetable garden can help keep those pests away.


Radishes are a great companion plant for squash. They help to deter some of the most notorious insects: Cucumber beetle and squash bug. Just planting 2 or 3 nearby can be enough to deter these insects. Icicle radish is a white radish that has a long history of being grown as a companion plant. It is known for its long, white flesh that grows straight out of the ground.

Radishes are root vegetable that has a rich and spicy flavor. It is said to be milder than the common radish, but it is still spicy. Radishes are also white and crisp, which makes them work well as they repel a wide range of pests. Additionally, planting radishes with squash can deter bugs since the two plants have different pest needs.


The best way to deter cucumber beetles is to plant something that will bring in their natural predators or plant a deterrent nearby. Dill is a great choice for a deterrent as it attracts beneficial insects such as lacewings and ladybugs. It is also a useful herb in the kitchen. Dill is an easy-to-care-for and resilient plant, making it a great choice for gardeners of all levels of experience.

Dill is a beautiful herb that has many benefits for the garden. The stiff, hollow stems are covered in lacy, delicate leaves. Dill can be harvested just as the flat-topped yellow flowers begin to open for the best flavor. The herb attracts benefits like ladybugs and bees, which help keep away pests like spider mites and aphids.


Sunflowers are a type of plant that grows well with squash. They are planted together in what is called the three sisters method. Corn allows beans to climb their stalk, which helps the beans grow better. Radishes deter pests with their prickly leaves, which help keep the garden healthy.


Legumes are a type of plant that plays an important role in nitrogen fixation. This means that they take nitrogen from the air and fix it into the soil, which other plants, such as squash can then use. Additionally, the radish foliage and flowers release a chemical that deters cucumber beetles. It is therefore beneficial to cultivate a variety of vegetables in your garden, in order to maximize the benefits you receive from each plant. Finally, planting squash in the same soil as cucumbers or melons can lead to insects overwintering and causing damage to your crops.


Marigolds and nasturtiums are both flowers that can be used in preparing dishes. Marigolds have a slightly peppery taste and are often used to add flavor to dishes. They also help repel pests, making them a valuable addition to any garden. Additionally, they can act as a trap crop: when pests are drawn to the marigolds, they will also be drawn to the other plants in the garden, allowing you to more easily get rid of them.


Borage is a deep-rooted plant that has many benefits for the garden. It attracts pollinators, helps keep pests away from other plants, and due to the star-shaped flowers, it attracts many beneficial insects.

What not to plant with squash?

Squash is a type of vegetable that can be grown in a variety of climates and soil types. However, some plants are not recommended to be planted with squash due to the potential for cross-infection. Some plants that should not be planted with squash include:

-Tomatoes, potatoes, peppers, eggplant

What can you not plant next to squash?

Squash plants are not compatible with Irish potatoes, tomatoes, strawberries, and other common garden plants. You should avoid planting these near each other as they can lead to the spread of diseases within the garden.

What can you not plant with yellow squash?

You cannot plant cucumbers with yellow squash

What can I intercrop with squash?

While many vegetables can be intercropped with squash, the most common are peppermint, dill, oregano, lemon balm,corn and beans.

Can I plant squash and zucchini together?

Yes, you can plant squash and zucchini together. They are both members of the cucurbit family of vegetables, so they will grow well together.

Can summer squash and cucumbers be planted together?

No, summer squash and cucumbers cannot be planted together. Cucumbers are a fruit plant and cannot be grown with summer squash as the plants will compete for nutrients.

Can summer squash and tomatoes be planted together?

Yes, they can. Tomatoes will help to prevent summer squash from bolting (producing flowers and vegetables too early) while the squash helps tomatoes grow better in the garden.

Does Delicata squash need a trellis?

A trellis is a framework that supports climbing plants. Delicata squash does not needs to be supported by a trellis.

Can you plant yellow squash next to tomatoes?

Yes, you can plant yellow squash next to tomatoes

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