8 Perfect Companion Plants to Grow With Watermelon

Gardening Tips
By Ella Brown

Growing watermelon alongside certain plants can enhance growth and deter pests.

Here are eight companion plants that pair well with watermelon, offering benefits such as improved soil health, pest control, and space utilization.

Each of these plants brings unique advantages to your garden, creating a thriving environment for your watermelons.

1. Bush Beans

© Thrive Heirloom Seed Emporium

Bush beans are excellent companions for watermelon as they fix nitrogen in the soil, enriching it naturally. This process improves the growth and yield of watermelon plants.

Additionally, bush beans can save space in your garden, growing vertically and not competing with watermelons for ground space.

Planting bush beans around watermelon also helps in deterring pests such as beetles. Their presence can create a thriving garden ecosystem, offering mutual benefits.

For gardeners aiming to maximize space and enhance soil quality, integrating bush beans with watermelon is a smart choice.

2. Radishes

© Better Homes & Gardens

Radishes grow quickly and don’t compete with watermelons for nutrients, making them ideal companions. Their rapid growth helps break up soil, improving aeration and water penetration.

Radishes also attract beneficial insects and repel cucumber beetles, protecting watermelon plants from damage. Planting radishes alongside watermelons can enhance pest control and soil health.

Radishes are perfect for intercropping and optimizing garden space, providing a harvest long before watermelons mature. This combination suits gardeners seeking efficient and beneficial planting strategies.

3. Carrots

© SNAP-Ed Connection – USDA

Carrots and watermelons make a harmonious pair in the garden. Carrots grow underground, leaving ample above-ground space for watermelon vines to spread. This pairing optimizes garden space and resources.

Carrots also help in loosening the soil, enhancing its structure and health, which benefits watermelon roots. Additionally, carrots attract beneficial insects that aid in pollination.

Planting carrots with watermelon can lead to a productive and balanced garden, ideal for gardeners looking to maximize their harvests and maintain healthy soil conditions.

4. Marigolds

© Rio Roses

Marigolds are renowned for their pest-repelling qualities, making them ideal companions for watermelon. They emit a strong fragrance that deters nematodes and other harmful pests.

Planted alongside watermelon, marigolds enhance plant health and reduce the need for chemical pesticides. Their vibrant flowers also attract pollinators, boosting watermelon yields.

This partnership adds beauty and utility to gardens, with marigolds offering aesthetic appeal and protective benefits. Gardeners favor marigolds for their dual role in pest control and pollination support.

5. Nasturtiums

© Rainbow Foods

Nasturtiums are not only beautiful but also practical companions for watermelon. Their vibrant flowers attract pollinators, enhancing fruit set and development.

Nasturtiums act as a trap crop, drawing pests away from watermelon plants. They are particularly effective against aphids and squash bugs, reducing pest pressure naturally.

This combination boosts both the health and productivity of watermelon plants, making nasturtiums a favorite among eco-conscious gardeners. Their ease of growth and pest control benefits make them a valuable addition to any garden.

6. Borage

© Amazon.com

Borage is a versatile companion plant for watermelon, known for its ability to attract beneficial insects like bees, enhancing pollination.

Its deep roots help improve soil structure and nutrient uptake for nearby plants, including watermelons. Borage also deters pests like tomato hornworms and cabbage worms, naturally safeguarding your garden.

Gardeners appreciate borage for its multiple benefits, including its edible flowers and leaves. By planting borage near watermelon, you create a robust and healthier garden environment, perfect for organic gardening enthusiasts.

7. Sunflowers

© Moana Nursery

Sunflowers make excellent companions for watermelon by providing shade and acting as windbreaks, which protect the delicate vines and fruit.

Their tall stalks don’t compete for space, allowing watermelon plants to spread and thrive. Sunflowers also attract pollinators, contributing to better fruit development.

This pairing is visually stunning, with sunflowers adding height and beauty to gardens. For gardeners aiming to protect their watermelon crops while enhancing pollination, sunflowers are an attractive and functional choice.

8. Corn

© Britannica

Corn and watermelon complement each other well, sharing resources and space efficiently. Corn provides shade and wind protection, benefiting the sprawling watermelon vines.

This combination optimizes garden layout, as corn grows vertically while watermelon spreads along the ground. Corn also attracts beneficial insects, aiding in pollination.

For gardeners focusing on maximizing space and improving crop resilience, planting corn with watermelon is a strategic and rewarding choice. This duo thrives together, creating a sustainable and productive garden environment.