Best Watermelon Companion Plants And Which 6 To Avoid!

To maximize your watermelon crop, companion planting is an important factor to consider. Planting certain other plants alongside watermelons can have huge benefits for their growth and yield – but be careful not to plant any companions that could do more harm than good.

This piece will explore the benefits of pairing watermelons with other plants, as well as highlighting which ones should be avoided. So if you want to get started on creating a successful garden full of healthy and productive watermelon plants, read on.

What Are the Best Companion Plants for Watermelons?

Watermelons are a popular summer fruit that requires full sun and plenty of space to produce the best fruit. Companion planting is an effective way to increase watermelon production while controlling insect pests, preventing weeds, and attracting beneficial insects.

When selecting companion plants for watermelons, it’s important to choose compatible plants that will not compete with the vines or attract harmful pests.

Avoid planting cucumber beetles, squash bugs, and other aphid species near your watermelon vines as these can damage the fruits or stunt their growth. It’s also best to avoid female flowers such as zucchini blossoms since they can attract squash beetles which feed on young melon leaves.

Instead of competing plant varieties, look for flowering herbs like basil and marigolds which will attract beneficial insects such as ladybugs who eat harmful pests like aphids before they have a chance to damage your melon crop.

Mixed wildflowers from the aster family are also great companions for watermelons because they help control pest populations naturally without any additional pesticides or treatments needed in your home garden.

Trap crops such as sweet clover are good companions for watermelons too since they draw in harmful pests away from the main crop so you won’t need to worry about gummy stem blight ruining your harvest season. Plus trap crops provide beautiful flowers throughout the growing season making them perfect additions in any home garden bed.

Finally, fast-growing vegetables like radishes make excellent companions with their shallow roots helping to prevent weeds while providing some added nutrition when harvested early in the season.

So there you have it – all you need now is a little sunshine and patience and soon enough you will be enjoying delicious homegrown melons right out of your own backyard.

Watermelons are a great addition to any garden and with the right companion plants, they can thrive. Considering that, here’s a rundown of the least suitable plants to accompany watermelons so you can dodge them in your own garden.

What Are the Worst Companion Plants for Watermelons?

When it comes to companion planting, watermelons are a tricky crop. Although watermelons can be grown with other plants, some should be strictly avoided. These include:

1. Brassicas – This family of vegetables includes broccoli, cauliflower and cabbage. They release chemicals into the soil which inhibit the growth of watermelon vines and reduce yields significantly.

2. Pole Beans – While pole beans can fix nitrogen in the soil and provide a good source of organic matter for your garden, their vigorous root systems compete with watermelons for space and nutrients in the soil. If you must grow them together, plant them far away from each other or use trellises to keep them separate.

3. Corn is another resource-stealing heavy feeder that should be kept far away from your melon patch; otherwise, it will not only reduce yields but also increase the risk of disease and insect infestations due to overcrowding in one area. Avoid planting corn too close by to ensure optimal harvests and healthy plants.

4. Avoid planting potatoes near any melon patches you have going on to steer clear of glycoalkaloids, which can stunt watermelon vine growth and even cause blossom end rot on the fruits. Keep your potato plants far away from your melons for optimal harvests and healthy plants.

5. Tomatoes, being prone to diseases such as blight and fusarium wilt which thrive in damp conditions, should be kept far away from watermelons.

6. Squash – Squash is notorious for attracting pests like cucumber beetles which love munching on young seedlings making it difficult for your melon patch to get off its feet before being decimated by hungry bugs. So even though squash may make tasty additions to salads or stir fries try keeping them far away from any developing fruit bearing crops like watermelons just in case something goes awry down the line…better safe than sorry right?

In conclusion, while companion planting has been used successfully by farmers around the world for centuries now, some combinations simply don’t work out no matter how hard we try.

Brassicas (broccoli/cauliflower/cabbage), pole beans, corn potatoes tomatoes & squash should all be kept away from any budding melon patches you have going on if you want optimal yields without having to worry about pest infestations ruining everything at harvest time.

Watermelons should be planted away from plants such as potatoes, cucumbers and squash to avoid any negative effects on their growth.

Moving forward, let’s explore the benefits of growing companion plants with watermelons.

Benefits of Growing Companion Plants with Watermelons

Growing companion plants with watermelons can provide many benefits to your garden.

One of the most important is pest control. Growing certain compatible plants near watermelon vines can help reduce insect pests, such as cucumber beetles and squash bugs, which are some of the worst enemies of watermelons.

Insects, like cucumber beetles and squash bugs, that feed on tender seedlings can wreak havoc on a watermelon crop if left unchecked.

Another benefit of companion planting is increased production of fruit. Certain compatible plants attract beneficial insects that pollinate female flowers on watermelon vines, helping them produce more fruit than they would otherwise. Some examples include flowering herbs like dill or marigolds, mixed wildflowers, or other members of the aster family such as daisies or cosmos.

Finally, companion planting can help prevent weeds from taking over your garden space and competing with melon plants for nutrients and sunlight exposure – something all melons require full sun for maximum yields.


In conclusion, watermelon companion plants can be beneficial in many ways. They help with pest control and nutrient cycling, while also providing additional pollination for the melons themselves.

By carefully selecting which plants to grow next to your watermelons you can reap all of these benefits without any negative impacts on their growth or development.

Grow your own watermelon patch with the help of companion plants!

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