16 Best Zucchini Companion Plants to Grow

Best Zucchini Companion Plants to Grow
Image: Envato Elements

Are you wondering about the best zucchini companion plants to grow? Zucchini is an extremely easy plant to grow from seed, and unlike other vegetables, there is no need for you to start seed indoors. Many gardeners will tell you that zucchini practically grows itself as it requires little care and maintenance and you still get to have an abundant harvest. Practising companion plant with your zucchini will keep pests away and ensure a healthy harvest.

Companion planting is important for every plant. Companion planting is a gardening method used by gardeners and farmers for years to enrich and protect vulnerable crops. Specific crops are planted near each other in other top deter pests, stimulate growth and attract beneficial insects.

While zucchini is a prolific grower, this doesn’t mean it can’t use a little assistance from the gardener and keep in mind that, it requires more nutrient than most plants and here are companion plants to surround it with to keep pests away. 

16 Best Zucchini Companion Plants to Grow video

16 Best Zucchini Companion Plants to Grow

A good planting strategy for zucchini is to have it grow with plants that won’t compete with it for nutrients but rather helps keep pests away. The purpose of companion planting is to encourage growth, yield and taste of the plants by growing them together hence if you are planning on planting zucchini this season or want to keep harmful pests away and attract beneficial pollinators, here are some of the best companion plants to grow with it.  

1. Garlic

Garlic repels pests like aphids due to the strong sulphur compounds it possesses. Garlic is a great companion plant to zucchini and all you have to do is have tucked among zucchini to keep pests away from it. Zucchini are heavy feeders which are why garlic is an ultimate companion plant as it won’t compete with it for nutrients. 

2. Parsley

Vegetables are not the only good companion to zucchini, parsley is a smelly herb that wards off pests and insects from zucchini however take acre when planting different varieties together. Parsley is a flavourful and easy to grow herb and having it grow with parsley provides abundant crop from both plants.  

3. Radish

Garden radish
Image: Envato Elements

Radishes are small plants that can be easily planted amid zucchini, it repels squash vine borers and beetles. Radishes are often considered workhouse of the garden. These are great companion plants for summer squash and zucchini, it helps repel common zucchini pests like aphids, squash bugs, cucumber beetles and others.  

4. Corn

Corn and zucchini make ultimate companions. Corn and squash make a good garden friend and they both have the same moisture and soil fertility requirement which makes it impeccable neighbours for zucchini.

5. Beans

Beans fix nitrogen levels in the soil to balance the pH level and zucchini loves nitrogen which makes beans a good example of companion plants to grow with zucchini.

6. Peas

Peas do the same thing as beans, it adds nitrogen to the soil which balances the pH level. 

7. Oregano

Aromatic herbs like oregano and marjoram are great at repelling pest like cabbage moth. Oregano can be planted between rows of zucchini for beneficial purposes and it is also good around asparagus and basil.

8. Borage

This companion plant is said to repel worms and attract beneficial insects such as bees and tiny wasps.

9. Cucumbers

11 Best Zucchini Companion Plants to Grow

Zucchini and cucumber are from the same family so these two can be planted together in your vegetable garden. Planting cucumber with zucchini as companion plants can help increase the overall density of what you can grow in a small plot and you will yield a more productive crop.

10. Nasturtiums

Nasturtiums are colorful and vibrant flowers to have in your garden, it is usually planted as companion plants to attract aphids and drive them away from the crops. They attract beneficial pollinators to the garden and while this may seem counterintuitive, gardeners purposefully plant nasturtiums as a host to protect nearby plants that are bothered by aphids. 

11. Spinach

Zucchini and spinach are mutually beneficial to each other. Spinach benefits from the shade provided by zucchini in the dead of summer while zucchini reaps the benefits of the nutrients spinach released back into the soil.

12. Phacelia

Phacelias are attractive flowers that promote good pollination in zucchini plants and attract pollinators.

13. Marjoram

Marjoram makes a good companion plant to zucchini. These plants have always been planted together and tend to be eaten together as well.

14. Mint

Combining the aroma of different mint plants with your zucchini is highly beneficial. It will repel grazing animals like deer.

15. Dill

Dill is an herb and it repels pests like cucumber beetles and flea beetles by attracting beneficial insects to your garden.

16. Tomatoes

Tomatoes and zucchini make great companions and not only can they be prepared together in a ratatouille, salad, or having them in your pasta, they can be planted together as well. Both can grow so large though, so plan ahead when choosing a planter box.

What Not To Plant With Zucchini

Just as some companion plants grow well together in the garden, there are also some that should not be grown near them. zucchini has very few plants that shouldn’t be planted near it. These include;

1. Fennel

Fennel attracts beneficial insects but it’s not a good companion for any garden food plant and not suitable for any vegetable either. Fennel will impede the growth of zucchini if planted near it.

2. Potatoes

Zucchini and potato are prone to the same garden pests and interplanting them makes them more susceptible to infestation hence it is not a good idea to have them planted near each other. Also, potatoes are heavy feeders that can deplete a large number of nutrients from the soil.

3. Pumpkin

Pumpkins and squash are from the same family and planting them with zucchini can negatively affect growth due to cross-pollination with each other resulting in poorly formed fruit. 

4. Winter Squashes

Winter squashes such as Butternut, Acorn, Hubbard will attract the same insect pests like squash bugs to your zucchini hence they should be avoided. It should be planted in a separate garden area from your zucchini.


Where should I plant zucchini in my garden?

You should have your zucchini planted where there is full sun and in consistently moist soil that is high in organic matter. There are also bush types of zucchini that are suitable for planting in containers and small space gardening.

Do zucchini plants need support?

Yes, just like every other plant, zucchini needs support. Zucchini plants do produce small vining tendrils along their stem but this is not enough to provide support to the weight of its mature stem and fruits.

Do zucchini grow after flowers fall off?

The common reason why a zucchini won’t grow back after the flowers fall off is blossom rot. If the female blossoms are not pollinated at all or poorly pollinated, the blossoms drop off and you get no fruit.

How long do zucchini flowers take to fruit?

It takes four to eight days for zucchini flowers to take fruit. You can wait longer if you want larger zucchini but the squash is likely to become too large and seedy to be palatable.

Do you have to replant zucchini every year?

Zucchinis are known as annual plants because their natural life cycle only lasts a season, hence they need to be replanted every year.

Do you need 2 zucchini plants to get fruit?

Yes, you need 2 zucchini plants which are male and female to get fruits. While you may get tons of flowers with 1 zucchini plant, you won’t get fruits, and in order to get fruits, you must have both male and female flowers at the same time.


Your knowledge of companion planting can be utilized in any garden method and there are endless benefits to companion planting. It is however important that companion planting does replace the need for proper maintenance and preparation of your garden. Zucchini benefits from being combined with other varieties of vegetables, it can help it fend off pests, increase its access to nutrients and share garden space effectively.

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Jane Walton
Jane Walton is a mum of two living in the countryside with her husband and four-legged fury, Jasper. With a degree and passion for Plant and Agricultural science, Jane writes articles that help readers figure out what, why, and how to better understand their home and garden. She currently presides over that section here at UnAssaggio.com overseeing everything to make sure you get it right the first time.