Best Companion Plants for Squash

Squash is a popular vegetable that is enjoyed by many gardeners. However, it can be challenging to grow squash without the right companion plants. Companion planting involves growing two or more plants together that benefit each other in some way. In this blog post, we'll explore the best companion plants for squash to help you have a successful harvest.

Why Companion Planting is Important for Squash

Companion planting is important for squash because it helps to improve soil health, prevent pest problems, and increase yields. Squash plants are susceptible to pests such as squash bugs and cucumber beetles, which can damage the plants and reduce yields. By planting companion plants, you can attract beneficial insects that will help to control these pests naturally. Additionally, certain companion plants can help to improve soil health by fixing nitrogen and adding organic matter to the soil.

15 Best Companion Plants for Squash

1. Marigolds

Marigolds are one of the best companion plants for squash. They release a chemical called alpha-terthienyl, which repels nematodes and other harmful soil-borne pests. Marigolds also attract beneficial insects such as ladybugs and lacewings, which feed on aphids and other common squash pests.

2. Nasturtiums

Nasturtiums are another excellent companion plant for squash. They have a strong scent that repels squash bugs and other pests. Additionally, they attract hoverflies, which feed on aphids and other common squash pests.

3. Beans

Beans are a great companion plant for squash because they fix nitrogen in the soil. Squash plants require a lot of nitrogen to grow, and beans can help to provide this essential nutrient. Additionally, beans create a living mulch that helps to conserve moisture and suppress weeds.

4. Radishes

Radishes are another good companion plant for squash. They mature quickly and can be harvested before the squash plants become too large. Additionally, radishes release compounds that repel squash bugs and other pests.

5. Corn

Corn is a tall plant that can provide shade for squash plants during hot summer months. Additionally, corn releases chemicals that attract beneficial insects such as ladybugs and lacewings.

6. Cucumbers

Cucumbers are a great companion plant for squash because they repel squash bugs and other common pests. Additionally, cucumbers have shallow roots that do not compete with the deep roots of squash plants.

7. Peas

Peas are another excellent companion plant for squash. They fix nitrogen in the soil, which can help to provide the essential nutrients that squash plants need. Additionally, peas create a living mulch that helps to conserve moisture and suppress weeds.

8. Sunflowers

Sunflowers are a tall plant that can provide shade for squash plants during hot summer months. Additionally, sunflowers attract beneficial insects such as bees, which are essential for pollinating squash plants.

9. Borage

Borage is a herb that attracts beneficial insects such as bees and hoverflies. Additionally, borage has shallow roots that do not compete with the deep roots of squash plants.

10. Dill

Dill is a herb that attracts beneficial insects such as ladybugs and lacewings. Additionally, dill has shallow roots that do not compete with the deep roots of squash plants.

11. Oregano

Oregano is a herb that repels many common pests such as aphids and spider mites. Additionally, oregano has shallow roots that do not compete with the deep roots of squash plants.

12. Chives

Chives are a herb that repels many common pests such as aphids and spider mites. Additionally, chives have shallow roots that do not compete with the deep roots of squash plants.

13. Garlic

Garlic is a bulb that repels many common pests such as aphids and spider mites. Additionally, garlic has shallow roots that do not compete with the deep roots of squash plants.

14. Rosemary

Rosemary is a herb that repels many common pests such as aphids and spider mites. Additionally, rosemary has shallow roots that do not compete with the deep roots of squash plants.

15. Sage

Sage is a herb that repels many common pests such as aphids and spider mites. Additionally, sage has shallow roots that do not compete with the deep roots of squash plants.

Using Companion Planting in Your Squash Garden

To use companion planting in your squash garden, simply plant one or more of these companion plants alongside your squash plants. Be sure to leave enough space between the plants so that they do not compete with each other for nutrients and water. Additionally, be sure to rotate your crops each year to prevent soil-borne diseases from building up in the soil.

FAQs:

Q1. Can I plant tomatoes with squash?

Yes, you can plant tomatoes with squash. However, it is important to leave enough space between the plants so that they do not compete with each other for nutrients and water.

Q2. Can I plant pumpkins with squash?

Yes, you can plant pumpkins with squash. They are both members of the same family (Cucurbitaceae) and have similar growing requirements.

Q3. How far apart should I plant companion plants from my squash plants?

It is recommended to plant companion plants at least 12 inches away from your squash plants to prevent competition for nutrients and water.

Q4. Can I use companion planting to control pests without using pesticides?

Yes, companion planting can help to control pests without the use of pesticides. By attracting beneficial insects that prey on common squash pests, you can reduce the need for chemical pesticides.

Q5. What are some other benefits of companion planting?

Companion planting can help to improve soil health, increase yields, and reduce the need for chemical fertilizers and pesticides.


Companion planting is an effective way to improve the health and productivity of your squash garden. By planting these companion plants alongside your squash plants, you can attract beneficial insects, improve soil health, and increase yields. Remember to leave enough space between the plants, rotate your crops each year, and practice good garden hygiene to prevent the spread of disease. Happy gardening!