When To Plant Watermelons In Arkansas

You can plant watermelons in Arkansas once the soil temperature stays above 70°F and all danger of frost has passed.
 
That usually means planting watermelons in Arkansas between late April and early June, depending on where you live in the state.
 
If you’ve been wondering when to plant watermelons in Arkansas, the short answer is simple: wait for warm soil and warm nights.
 
Watermelons are tropical by nature and they absolutely hate the cold.
 
In this post, we’ll break down the best time to plant watermelons in Arkansas by region, the soil conditions you need, and a few tips to get a sweet, juicy harvest.
 
Let’s dig in.
 

When to Plant Watermelons in Arkansas

Planting watermelons in Arkansas is all about timing, and that timing shifts depending on which part of the state you call home.
 
Arkansas stretches across USDA hardiness zones 6b through 8a, so the growing season in the southern part of the state starts earlier than in the northern hills.
 
The key factor is soil temperature, not just air temperature.
 
Watermelon seeds need soil that’s consistently at least 70°F for good germination, and 80°F or higher is even better.
 
If you plant too early in cold, soggy soil, your seeds will rot before they ever sprout.
 
So let’s look at the timing by region.
 

1. Southern Arkansas

If you’re in southern Arkansas, you can usually plant watermelons starting in mid to late April.
 
Places like Texarkana, El Dorado, and Pine Bluff warm up fast once spring arrives.
 
By late April, the soil is often warm enough for watermelon seeds to germinate.
 
Still, keep an eye on the forecast because a late cold snap can wipe out young seedlings overnight.
 

2. Central Arkansas

In central Arkansas, including Little Rock and Conway, the best time to plant watermelons is typically late April through mid-May.
 
You want to wait until nighttime temperatures stay reliably above 55°F.
 
Planting watermelons in central Arkansas around the first week of May is a safe bet most years.
 

3. Northern Arkansas

Northern Arkansas, around Fayetteville, Mountain Home, and Batesville, is the coldest part of the state.
 
Here, planting watermelons in Arkansas often means waiting until mid-May to early June.
 
The last frost date in this region can stretch into late April, so patience is a virtue.
 
If you’re in the Ozarks, aim for the third or fourth week of May to be safe.
 

What Watermelons Need to Thrive in Arkansas

Timing is only half the battle when you plant watermelons.
 
You also need the right conditions to get those big, sweet melons Arkansas is known for.
 
Here’s what to keep in mind.
 

1. Warm Soil

As we mentioned, watermelons need soil that’s at least 70°F.
 
You can speed things up by laying black plastic mulch over your planting bed a couple of weeks before you plant.
 
This warms the soil and helps retain moisture.
 

2. Full Sun

Watermelons need at least 8 to 10 hours of direct sunlight every day.
 
Pick the sunniest spot in your garden, because shade will stunt growth and reduce sugar content.
 

3. Well-Drained Soil

Watermelons hate soggy roots.
 
Make sure your soil drains well, and consider planting on raised mounds or hills.
 
This also helps the soil warm up faster in spring.
 

4. Plenty of Space

Watermelon vines sprawl, so give them room.
 
Space your hills about 6 to 8 feet apart to let the vines run freely.
 

Tips for Planting Watermelons in Arkansas

Once you know when to plant watermelons in Arkansas, a few extra tips can make your harvest even better.
 
First, consider starting seeds indoors about three weeks before your target planting date.
 
This gives you a head start, especially in northern Arkansas where the season is shorter.
 
Just be careful when transplanting, because watermelon roots are fragile.
 
Second, water deeply but infrequently.
 
Watermelons need about 1 to 2 inches of water per week, but let the soil dry slightly between waterings.
 
Third, feed your plants.
 
A balanced fertilizer at planting and again when vines start running will keep them healthy.
 
Finally, watch for pests like cucumber beetles and squash bugs, which love watermelon plants.
 

So, When to Plant Watermelons in Arkansas?

You can plant watermelons in Arkansas once the soil is warm and the frost threat is gone, which usually means late April to early June depending on your region.
 
Southern Arkansas starts earliest, central Arkansas follows in early May, and northern Arkansas waits until mid to late May.
 
If you’ve been asking when to plant watermelons in Arkansas, the answer really comes down to warm soil, warm nights, and plenty of sunshine.
 
Get that timing right, and you’ll be enjoying sweet, homegrown watermelons all summer long.