How Do You Get A Watermelon To Ripen

You can get a watermelon to ripen by understanding what’s actually happening inside the fruit and giving it the right conditions to finish maturing.
 
If you’ve ever cut into a watermelon only to find pale, bland flesh staring back at you, you’re not alone.
 
Getting a watermelon to ripen properly comes down to a few key factors like ethylene gas, temperature, and timing.
 
In this post, we’ll explore how to get a watermelon to ripen, the best methods to speed things up, and the mistakes that leave you with a disappointing slice.
 

Why It’s Tricky to Get a Watermelon to Ripen

Getting a watermelon to ripen after it’s been picked isn’t as straightforward as you might think, and here’s why:
 

1. Watermelons Are Non-Climacteric

Here’s the hard truth about how to get a watermelon to ripen: watermelons are non-climacteric fruits.
 
That means once they’re severed from the vine, they basically stop ripening.
 
Unlike bananas or avocados that keep producing ethylene gas to mature after harvest, a watermelon doesn’t have that ability.
 
So getting a watermelon to ripen after picking is mostly about picking one that was already ripe or close to it.
 

2. Ripening Happens on the Vine

If you’re growing watermelons, the real magic of getting a watermelon to ripen happens while it’s still attached to the plant.
 
The vine delivers sugars and nutrients that develop flavor, color, and that signature crunch.
 
Once you cut it, that pipeline shuts off.
 
This is why farmers wait for that perfect window before harvesting, because getting a watermelon to ripen off the vine simply isn’t how nature designed it.
 

3. Ethylene Gas Won’t Help Much

You might think trapping a watermelon in a paper bag with a banana will get it to ripen, but that trick doesn’t really work here.
 
Trying to get a watermelon to ripen with ethylene gas is like pushing a parked car, it just won’t budge.
 
Watermelons don’t respond to ethylene the way climacteric fruits do.
 
So don’t waste your ripe bananas hoping to get a watermelon to ripen faster, because it won’t happen.
 

How to Get a Watermelon to Ripen at Home

So how do you get a watermelon to ripen when it’s sitting on your kitchen counter?
 
While you can’t dramatically change its fate, you can encourage whatever minor ripening might still occur by:
 

1. Keep It at Room Temperature

If you want to get a watermelon to ripen even slightly, leave it out at room temperature.
 
Cold temperatures in the fridge will actually halt any remaining ripening process.
 
Aim for a spot around 70°F (21°C) where it can sit undisturbed.
 
This won’t perform miracles, but it gives whatever natural processes are left a fighting chance.
 

2. Turn It Occasionally

Turning your watermelon every day or so can help distribute whatever internal ripening is still happening.
 
This is an old trick to get a watermelon to ripen more evenly.
 
It also helps you check for soft spots or signs of rot.
 
Just don’t expect a dramatic transformation, because physics and biology have other plans.
 

3. Give It Time

Sometimes the best way to get a watermelon to ripen is simply to wait a few days.
 
If it was picked just shy of peak ripeness, a couple of days on the counter might soften it slightly and bring out a bit more sweetness.
 
But if it was picked way too early, no amount of patience will get a watermelon to ripen into something worthwhile.
 

4. Use the Thump Test

Here’s a trick to check if your efforts to get a watermelon to ripen are paying off.
 
Give it a good thump with your knuckles.
 
A ripe watermelon sounds hollow and deep.
 
An unripe one sounds more solid and dull.
 
This won’t change the ripening process, but it helps you know when to stop trying to get a watermelon to ripen and just cut it open.
 

Choosing a Watermelon That’s Already Ripe

Since getting a watermelon to ripen after picking is so limited, the real skill is picking one that’s ready to eat.
 
Here’s what to look for so you don’t have to rely on getting a watermelon to ripen at home:
 

1. Look for a Creamy Yellow Field Spot

Flip the watermelon over and check the spot where it sat on the ground.
 
A creamy yellow or orange patch means it ripened on the vine.
 
A white or green spot means it was picked too early, and getting a watermelon to ripen after that is nearly impossible.
 

2. Check for Dry, Brown Tendrils

If you’re picking from the vine, look at the curly tendril closest to the fruit.
 
When it’s dry and brown, the watermelon is ripe and ready.
 
This is the best way to get a watermelon to ripen naturally, because you’re letting it finish on the plant.
 

3. Pick One That Feels Heavy

A ripe watermelon feels heavy for its size.
 
That weight comes from water and sugar content, which are signs it ripened properly.
 
A light watermelon is often a sign it was picked before it had a chance to develop, making getting a watermelon to ripen a lost cause.
 

So, How Do You Get a Watermelon to Ripen?

You can get a watermelon to ripen only slightly after picking, since watermelons are non-climacteric and stop maturing once cut from the vine.
 
The best approach is to leave it at room temperature, turn it occasionally, and give it a few days to soften and sweeten.
 
But honestly, the real secret to getting a watermelon to ripen is picking one that ripened fully on the vine in the first place.
 
Look for that creamy yellow field spot, a heavy feel, and dry tendrils if you’re harvesting your own.
 
That way, you’re not fighting biology to get a watermelon to ripen, you’re just enjoying it the way it was meant to be.