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Yes, you can plant watermelon in June, and it’s actually a great time to get those seeds or transplants in the ground in many regions.
June planting works especially well if you’re in a warmer climate with a long growing season ahead.
Watermelons love heat, and June delivers plenty of it, so the timing can be just right for a sweet harvest later in the summer or early fall.
If you’ve been wondering whether you can plant watermelon in June, the short answer is absolutely yes, as long as you keep a few key things in mind.
In this post, we’ll cover why planting watermelon in June works, how to do it right, and what to watch out for so you get the best results.
Let’s dive in.
Why You Can Plant Watermelon in June
Planting watermelon in June is totally doable, and here’s why.
1. Watermelons Thrive in Warm Soil
Watermelon seeds need warm soil to germinate, ideally between 70°F and 95°F.
By June, most regions have soil that’s warmed up nicely, so your seeds will sprout quickly.
This is one of the biggest reasons you can plant watermelon in June without worry.
2. Long, Hot Days Ahead
Watermelons are heat-loving plants that need plenty of sunlight to grow and ripen.
June marks the start of long, sunny days in most areas, giving your plants the light they crave.
The more sun your watermelon gets, the sweeter and juicier the fruit will be.
3. You Still Have Time Before Frost
Most watermelon varieties take 70 to 90 days to mature.
If you plant in early June, that puts your harvest around late August or September, well before the first frost in many regions.
So yes, you can plant watermelon in June and still get a full crop if you choose the right variety.
4. Faster Germination and Growth
Because the soil and air are already warm in June, your watermelon plants will grow faster than they would in cooler months.
You won’t have to wait as long for seedlings to emerge, and the plants will hit their stride quickly.
That means less time babysitting and more time watching your melons swell.
How to Plant Watermelon in June the Right Way
If you want to plant watermelon in June successfully, follow these steps.
1. Pick a Fast-Maturing Variety
Since you’re planting a bit later, choose a variety that matures in 70 to 80 days.
Look for types like Sugar Baby, Blacktail Mountain, or Crimson Sweet.
These shorter-season watermelons are perfect when you plant watermelon in June.
2. Choose a Sunny Spot
Watermelons need at least 8 to 10 hours of direct sunlight daily.
Pick a spot in your garden that gets full sun all day long.
The more sun, the better your chances of a sweet, ripe harvest.
3. Prepare the Soil
Watermelons love loose, well-draining soil rich in organic matter.
Mix in compost or aged manure before planting to give your plants a nutrient boost.
You can also form raised mounds or hills, which help the soil warm up and drain well.
4. Plant Seeds or Transplants
You can plant watermelon in June from seed or use transplants for a head start.
If using seeds, plant them about 1 inch deep in hills spaced 4 to 6 feet apart.
If using transplants, wait until they have at least two true leaves and plant them at the same depth they were growing in their pot.
5. Water Consistently
Watermelons need regular watering, especially during flowering and fruit development.
Keep the soil evenly moist but not soggy.
A deep watering once or twice a week is usually enough, depending on your climate.
6. Watch for Pests and Diseases
June planting can bring pests like aphids, cucumber beetles, and squash bugs.
Keep an eye on your plants and treat problems early with organic or chemical controls as needed.
Also watch for powdery mildew, which can show up in humid conditions.
Tips for Success When You Plant Watermelon in June
Here are a few extra tips to help your June-planted watermelons thrive.
1. Use Black Plastic Mulch
Black plastic mulch warms the soil and helps retain moisture.
It’s a great option when you plant watermelon in June because it gives your plants a warm, stable environment.
2. Feed Your Plants
Watermelons are heavy feeders.
Apply a balanced fertilizer when vines start to run, and again when flowers appear.
Don’t overdo the nitrogen, or you’ll get lots of leaves and few melons.
3. Pollinate by Hand if Needed
If you notice few bees in your garden, you can hand-pollinate watermelon flowers.
Just transfer pollen from male to female flowers using a small brush or cotton swab.
This helps ensure good fruit set, especially when you plant watermelon in June and want a reliable harvest.
4. Harvest at the Right Time
Watermelons are ready when the tendril closest to the fruit turns brown and dry.
The spot where the melon touches the ground should also turn creamy yellow.
And of course, a hollow thump sound is a classic sign of ripeness.
So, Can You Plant Watermelon in June?
Yes, you can plant watermelon in June, and with the right variety and care, you’ll still enjoy a delicious harvest.
Just remember to choose a fast-maturing type, give your plants plenty of sun and water, and keep an eye out for pests.
Planting watermelon in June is a great way to extend your garden season and enjoy fresh, homegrown melons later in the year.
So go ahead and get those seeds in the ground, because you absolutely can plant watermelon in June.