Eggplant Companion Plants (What Not To Grow Near Eggplants)

Companion Planting has helped many plants reach their full potential. Eggplant will not be an exception even though its cultivation appears to be difficult. This vegetable plant’s requirements are great but are nothing companion Planting can’t take care of.

Eggplant belongs to the nightshade family and is also known as Aubergines. Other vegetables and crops that belong to the nightshade family are; potatoes, tomatoes, e.t.c.

There are varieties of eggplant which are all characterized by purple skin. Ichiban, little fingers and large oval eggplant are varieties of eggplant and they come with a slightly distinct growing requirement. 

Some of the best companion plants for eggplants are borage, oregano, mints, nightshade, broccoli, radish, marigold, nasturtium, and pole beans. Eggplants are heavy feeders so best to choose plants that require the same thing. Plants that should not be grown near eggplants are geranium, corn, and fennel.

Being a perennial vegetable, eggplant prefers warm temperatures, a fertile soil (preferably soil mixed with sufficient nitrogen) to thrive well. Eggplant contains nutrients and is a staple food eaten by many in Africa. You can choose to enjoy your eggplant fried, steamed, or cooked. Over the centuries, eggplant’s taste has improved from bitter to sweet. 

Eggplant is a good companion plant that will aid the growth of other plants while also increasing its yield. This can be achieved by growing eggplant with certain plants that support its growth. 

10 Best Eggplant Companion Plants

For a vegetable like an eggplant that requires high maintenance, you will need to follow its guide in toto to have a good yield. However, companion planting will help in achieving the same results with little stress. 

1. Nightshade

Eggplant belongs to the nightshade family. Unlike other plants that can’t companion with their family, eggplant will grow well and not compete for nutrients. This implies that eggplant will companion with peppers, and tomatoes well even though they are vulnerable to similar diseases and pests. 

2. Broccoli

The relationship between eggplant and broccoli is commensal. Broccoli supplies the soil with nutrients that eggplant feeds on. Eggplant needs to feed on sufficient nutrients to survive and produce a good yield. It takes up the nutrients incorporated into the soil by broccoli. 

3. Nasturtiums

Nasturtium Companion Plants
Image: Envato Elements

Nasturtiums have beautiful flowers that blossom. Aphids are common pests that get attracted to Nasturtiums. To ward away aphids from your eggplant, situate some Nasturtium flowers close by. 

4. Borage

Flowers have a pest repelling attribute. Borage is another example of a flower that helps to keep worms away from your eggplant. Borages can invite pollinators to your plant. 

5. Pole Beans

Cover crops are one of the best companion plants to have in your garden. These crops fix nitrogen in the soil. Eggplant requires a significant amount of nitrogen to grow. 

6. Spinach

Spinach and eggplant benefit each other and are perfect companions. Eggplant serves as a source of shade for spinach and spinach helps eggplant to conserve moisture. Both plants don’t attract diseases or pests when planted together. 

7. Rosemary

Rosemary Companion Plants
Image: Envato Elements

Some herbs serve as good companion plants for eggplant. Eggplant prefers herbs with a strong scent. Rosemary emits a pungent scent that will help in deterring colorado potato beetles from eggplant. Rosemary enhances its flavor too. 

8. Radish

It takes a professional gardener to use the ‘Trap crop’ method of gardening. Trap crop involves using a companion plant that attracts certain pests similar to your plant as a distraction. Nasturtium flowers are an example of a trap crop. It is used to distract aphids from your eggplant. Another example of a trap crop is Radish. Radishes distract flea beetles from eggplant and attract them to themselves. 

9. Oregano

Aphids, cabbage moths, and spiders are major pests that can destroy your eggplant. However, planting flowers or herbs that can deter these pests is your best bet. Some examples of these plants have been mentioned in the previous paragraphs. Oregano releases a scent that keeps these pests at bay. It also invites pollinators and helpful insects. 

10. Mints

Does Mint Grow Back Every Year?
Image: Envato Elements

Mint has a magical effect on humans let alone pests. This herb releases a scent that gets rid of pests. There are varieties of mint plants that pair well with eggplant. They include peppermint and winter mint. Although mint is an invasive herb, its root will have no adverse effect on eggplant. By sprinkling some mint leaves or growing them with eggplant, pests will stay far away from it. 

11. Marigold

Marigolds pair well with many crops in the garden. This flower invites pollinators to your Aubergines and releases a pungent smell that keeps pests at bay. Take note that beans must not be found with marigold and eggplant on the same soil because it’s toxic to its growth. 

What Not To Plant With Eggplants

Sighting an eggplant vegetable in a garden will interest you to have the same in your garden.

An eggplant is a beautiful and colorful plant. Companion planting is highly recommended to maintain this beautiful plant and boost its yield. To avoid the destruction of this vegetable, some plants must not come close to your eggplant. 

1. Fennel

Planting fennel with eggplant vegetables is an Ill omen. It is found on the list of plants you should never grow with other garden plants. Fennels will deplete nutrients in the soil and prevent the eggplant from receiving sufficient nutrients it needs to bloom into that beautiful purple vegetable. 

2. Corn

Corn Companion Plants
Image: Envato Elements

Corn is susceptible to numerous pests, especially aphids. It can implicate your eggplant by attracting these pests to it thereby stunting its growth. 

3. Geranium

Geranium, if grown with other plants will act as a pest repellent. Nevertheless, companioning Geraniums with eggplant will result in disease infections for the eggplant because it’s vulnerable to many diseases.

Eggplant Companion Planting Guide

Here are some companion planting tips you’ll find helpful when planting eggplants in your garden.

  • Before planting, rake the soil to get rid of stumps, roots, and weeds then replenish the soil with manure
  • Seed germination should start indoors because of frost. Eggplant doesn’t appreciate a cool weather
  • Before transplanting eggplant, make sure it is subjected to a warm temperature
  • Eggplant thrives in well-drained fertile soil
  • When planting indoors, place your eggplant where it will receive direct sunlight. The same applies to it after it has been transplanted outdoors
  • A spacing of 2 ft. apart in the garden is important for your plant to flourish
  • Wet your plants with an inch of water every week
  • Eggplant best thrives at a temperature of 70° F.

Are eggplants easy to grow?

Eggplant requires high maintenance and some species are difficult to grow. Eggplant is not regarded as an easy-to-grow plant because of the pest it is vulnerable to. Eggplant is susceptible to flea beetles. White eggplant and large oval eggplant are species of eggplant that will not give you too many problems trying to cultivate it.

Why is my eggplant not fruiting?

Eggplant thrives well in a warm temperature ( a temperature of 70° F). If it’s subjected to a temperature hotter than 70° F, that will be the reason it didn’t fruit. Eggplant’s growth will be stunted if the temperature isn’t favorable.

Do eggplants need support?

Just like tomatoes that belong to the nightshade family, eggplant will be subjected to a high risk of getting infected when it is placed on the ground. When growing an eggplant, support it to increase its resistance to diseases.

Do eggplants need full sun?

Eggplant should receive at least 6-8 hours of direct sunlight. Sufficient sunlight contributes to its yield and helps it to fruit properly.

Are coffee grounds good for eggplant?

Coffee grounds are fertile and are the best soil for eggplant. Eggplant grows well on fertile soil and coffee grounds are enriched with essential minerals.

Should you water eggplant every day?

During hot weather, watering your eggplant with 12 inches of water is good for your plant. Although, an inch depth of water per week is the norm for your eggplant vegetable.

How do you increase eggplant yield?

Fertile and warm soil will give your eggplant the boost it needs. Mix some compost with the soil or cover the soil with a container. It regulates the temperature to suit eggplant’s production.

Will eggplant survive the winter?

Never grow your eggplant in cold temperatures, not even winter season. It will expose it to frost which will affect its growth. Fall and spring are the best seasons to cultivate your eggplant.

How tall do eggplant plants get?

Eggplant lengths range from 24-to 36 inches. The length of your eggplant is also determined by the variety you plant.

Do eggplants need a trellis?

Eggplant increases its resistance to diseases when it is supported by a trellis. That way, the fruit won’t touch the floor.

How far apart should eggplant be planted?

Provide your eggplant with a spacing of at least 2 ft. Apart. It helps each of them grow properly without competing for nutrients.

What is the best fertilizer for eggplants?

Miracle-Gro fertilizer is the best for eggplant. Eggplant needs a 10:10:10 ratio of fertilizer to blossom well. 


Although, eggplant can appear difficult to cultivate. Companion planting will help to boost its yield and keep pests away from it.

Eggplant will grow well when you adhere to the planting guide. A well-drained fertile (preferably loamy soil), little watering, full sun, Temperature of 70 ° F will produce large fruits of eggplant.

More from companion planting: