ripe watermelon (Citrullus lanatus) in a residential vegetable and flower garden

What to Plant With Watermelon?

Ah, watermelons! These juicy, sweet fruits are a summertime favorite, offering a refreshing treat on a hot day. But did you know there’s a gardening secret to growing healthier, more productive watermelon plants? Meet companion planting, your new gardening best friend! In this guide, we’ll be exploring what to plant with watermelons to help them thrive and yield a bumper crop. Ready to dive in? Let’s go!

Sow Right Seeds – Crimson Sweet Watermelon Seeds for Planting – Non-GMO Heirloom Packet with Instructions to Plant a Home Vegetable Garden – Large Red Melon with Sweet Flesh – Summer Variety (1)
  • Beautiful – Large full color packet of Crimson Sweet Watermelon (Citrullus lanatus) seeds. This classic watermelon is high in lycopene and bursting with flavor. Fruits are 20-25 pounds with light striped skin, vivid crimson flesh and small black seeds. Resistant to anthracnose and fusarium wilt. AAS winner. Minimum of 2 g per packet (about 50 seeds).
  • Productive – Watermelon germinates in 5-9 days when soil temps are 70-85°F. Plant 1/2” deep and space 6’ apart in an area with full sun. This variety will grow up to 6’ tall on a trellis, or spread up to 6’. Watermelons will mature in 80-90 days, plant in USDA zones 3-9.
  • Good Eats – Make a BIG change to your garden with Crimson Sweet Watermelon! It is rich with potassium, Vitamin A, and Vitamin C. Enjoy a high yield harvest from this hefty watermelon.
  • Easy to Grow – Instructions included on each packet. Plus, we are available to answer all your questions. If these seeds don’t germinate, we will happily make it right for you.
  • Safe and Sustainable – Our operation is fully solar powered, and Sow Right Seeds has taken the Safe Seed Pledge to sell only fresh Non-GMO heirloom seeds for you and your family.

Understanding Companion Planting

So, what exactly is companion planting? Picture your best friend. You guys get along well, support each other, and bring out the best in each other, right? Well, plants can have best friends too! Companion planting is all about pairing plants that help each other in various ways. Some plants deter pests that might bug (pun intended!) their companions, while others attract beneficial insects or improve the soil by adding nutrients.

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For watermelons, companion planting can be especially helpful. Watermelons need plenty of nutrients to grow those big, juicy fruits, and certain plants can help them get just what they need. Similarly, some plants can help keep pests away from your precious watermelons, making sure they grow up strong and healthy. Sounds pretty cool, huh? Let’s find out which plants make the best companions for watermelons!

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  • Very healthy plants and already started blooming
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  • These plants are real fast growing and just needs proper hear condition and moderate watering
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Best Companions for Watermelon

When it comes to picking companions for your watermelon, think about the plants that can offer some mutual benefits. Here are a few excellent choices:

  1. Marigolds: These bright, cheerful flowers aren’t just pretty to look at. They’re known to repel many common pests, including beetles and nematodes, that might want a bite of your watermelon.
  2. Corn: Corn and watermelon are a gardening dream team. The tall corn stalks provide a little shade for the watermelon plants, while the watermelons’ broad leaves help keep the soil moist for the corn.
  3. Nasturtiums: These vibrant flowers attract beneficial insects that can help keep pest populations in check. Plus, they can act as a “trap crop,” luring pests away from your watermelons.
  4. Radishes: Believe it or not, planting radishes near your watermelons can help deter pests like cucumber beetles and aphids. The radishes’ pungent smell keeps these pests at bay.
  5. Legumes (beans, peas): These plants are great soil improvers. They add nitrogen to the soil, a nutrient that watermelons love!
Burpee Cherry Belle Radish Seeds 1000 seeds
  • All-American selections winner. Extra-early, retains fine eating quality all season
  • Each packet contains 1000 seeds
  • Sow outdoors in early spring after the average last frost date and harvest in 22 days
  • Plant Height is 4″. plant spread is 3″. yields 3/4″ roots
  • Annual for all growing zones from 1-11. Sunlight exposure = full-sun

Plants to Avoid Planting with Watermelons

Just as some plants make great companions for watermelons, others should be kept at a distance. Here’s a list of plants that you should avoid planting with watermelons:

  1. Potatoes: Potatoes and watermelons aren’t the best neighbors. They tend to compete for nutrients and space, and both plants can end up suffering.
  2. Other melons (cantaloupe, honeydew): While they might seem like natural friends, planting different types of melons close together can lead to cross-pollination, which can negatively affect the taste and texture of your fruits.
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By choosing the right companions and avoiding the wrong ones, you can create a harmonious garden where your watermelons can thrive. Ready for some companion planting tips? Let’s move on!

Tips for Successful Companion Planting with Watermelons

Companion planting sounds great, doesn’t it? But before you start planting marigolds next to every watermelon vine, let’s go over some helpful tips to ensure your companion planting journey is successful:

  1. Plan Ahead: Companion planting requires some planning. You’ll need to figure out where to place each type of plant to maximize their benefits.
  2. Give them space: While it’s great to plant companions close by, remember that watermelons need a lot of room to grow. Make sure they have ample space to spread out without overshadowing their companions.
  3. Rotate crops: Rotating crops from year to year can help prevent pests and diseases from becoming established in the soil.
  4. Monitor closely: Keep an eye on your plants. If you notice one type of plant isn’t thriving, it may be a sign that the companions aren’t a good match after all.

Conclusion

Companion planting is like finding the perfect friends for your watermelons. When done right, it can help your watermelons grow stronger, healthier, and more productive. But remember, every garden is unique. What works for one garden might not work for another. Don’t be afraid to experiment and see what works best for your green space. Happy companion planting! May your watermelons be large, your pests be few, and your summer be sweet and refreshing!

About the author

Victoria Nelson

Victoria Nelson is a passionate gardener with over a decade of experience in horticulture and sustainable gardening practices. With a degree in Horticulture, she has a deep understanding of plants, garden design, and eco-friendly gardening techniques. Victoria aims to inspire and educate gardeners of all skill levels through her engaging articles, offering practical advice drawn from her own experiences. She believes in creating beautiful, biodiverse gardens that support local wildlife. When not writing or gardening, Victoria enjoys exploring new gardens and connecting with the gardening community. Her enthusiasm for gardening is infectious, making her a cherished source of knowledge and inspiration.

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