How Do You Get A Watermelon To Ripen

You can get a watermelon to ripen by paying attention to a few key signs and giving it the right conditions, whether it’s still on the vine or already sitting on your kitchen counter.
 
If you’ve been wondering how do you get a watermelon to ripen, the answer isn’t always about waiting longer, it’s about knowing when it’s truly ready and how to help it along if it’s not.
 
Watermelons are tricky because they don’t ripen much after being picked, unlike bananas or avocados that keep changing on the counter, so getting it right at harvest or choosing a good one at the store matters a lot.
 
In this post, we’ll walk through how to tell if a watermelon is ripe, what you can do to encourage ripening on the vine, and whether there’s any hope for a watermelon that’s already been picked and is sitting on your counter.
 
Let’s get into it.
 

How Do You Get a Watermelon to Ripen on the Vine?

Getting a watermelon to ripen properly starts long before you think about picking it.
 
The key is to give the plant everything it needs to mature its fruit naturally.
 

1. Give It Plenty of Sunlight

Watermelons need full sun, at least six to eight hours a day, to produce the sugars that make them sweet.
 
If your watermelon plant is shaded by other plants or structures, the fruit may struggle to ripen fully.
 
Trim back nearby foliage if it’s blocking the sun, but be careful not to remove too many leaves since they help the plant make energy.
 

2. Water Deeply but Not Too Often

Consistent watering is crucial for getting a watermelon to ripen.
 
Water deeply once or twice a week, letting the soil dry out slightly between waterings.
 
Too much water near harvest can dilute the sugars and make the fruit bland or even cause it to split.
 
Reduce watering as the melon gets close to ripening to concentrate the sweetness.
 

3. Watch the Calendar and the Tendril

Most watermelon varieties take 70 to 90 days from planting to harvest.
 
But the calendar isn’t the only sign, the best indicator is the tendril closest to the fruit.
 
When that tendril turns brown and dries up, the watermelon is usually ready.
 
If it’s still green, the fruit needs more time on the vine to ripen properly.
 

4. Don’t Rush the Harvest

One of the biggest mistakes people make is picking a watermelon too early.
 
Once it’s off the vine, a watermelon won’t continue to ripen the way it would if left attached.
 
So if you want to know how do you get a watermelon to ripen, the honest answer is patience on the vine is your best bet.
 

Can You Ripen a Watermelon After It’s Picked?

Here’s the tough truth: a watermelon that’s been picked won’t get sweeter or ripen further in the traditional sense.
 
Unlike climacteric fruits like tomatoes or peaches, watermelons are non-climacteric, meaning they don’t produce a burst of ethylene that continues the ripening process after harvest.
 

1. What You Can Do Instead

If your watermelon is underripe, you can’t make it sweeter, but you can make it more enjoyable.
 
Try cutting it up and letting it sit at room temperature for a day or two.
 
This won’t ripen it, but it can soften the texture slightly and bring out whatever natural sweetness is there.
 

2. Use Underripe Watermelon in Other Ways

An underripe watermelon still has plenty of uses.
 
Blend it into smoothies, juice it, or toss it into a salad with a drizzle of honey or a squeeze of lime.
 
The added sweetness from other ingredients can mask the lack of sugar in the melon itself.
 
You can also pickle the rind, which is a classic Southern trick that turns an underripe melon into something tangy and delicious.
 

3. Store It Properly

If you’re not eating your watermelon right away, store it in a cool place, around 50 to 60 degrees Fahrenheit is ideal.
 
Once cut, refrigerate it in an airtight container for up to five days.
 
This won’t help it ripen, but it will keep it fresh and prevent it from going bad before you can enjoy it.
 

How to Pick a Ripe Watermelon Every Time

Since you can’t rely on ripening after picking, choosing a ripe watermelon from the start is everything.
 
Here’s what to look for:
 

1. The Field Spot

Flip the watermelon over and look for a creamy yellow spot where it rested on the ground.
 
If that spot is white or green, the melon was picked too early and won’t be as sweet.
 
A deep yellow or orange field spot means it ripened fully on the vine.
 

2. The Thump Test

Give it a good knock and listen for a deep, hollow sound.
 
A dull thud usually means it’s underripe or overripe, while that resonant hollow tone signals a juicy, ripe melon.
 

3. The Weight and Shape

A ripe watermelon feels heavy for its size, which means it’s full of water and sugar.
 
Look for a symmetrical shape without soft spots or bruises.
 

So, How Do You Get a Watermelon to Ripen?

You get a watermelon to ripen by letting it mature fully on the vine with plenty of sun, consistent watering, and patience.
 
Once it’s picked, a watermelon won’t ripen further, so the best strategy is to harvest at the right time or choose a ripe one at the store.
 
If you end up with an underripe melon, don’t toss it, use it in smoothies, salads, or pickled rind recipes instead.
 
Knowing how do you get a watermelon to ripen comes down to understanding that timing and conditions on the vine are everything.
 
Get that right, and you’ll enjoy sweet, juicy watermelon every single time.