When To Harvest Aubergine

The best time to harvest aubergine is when the fruits are firm, glossy, and fully colored, usually 65 to 80 days after transplanting.
 
If you’ve been wondering when to harvest aubergine, the short answer is before the skin loses its shine and the flesh turns spongy.
 
Unlike tomatoes, aubergine won’t ripen much further once you pick it, so timing your harvest is everything.
 
In this post, we’ll walk through exactly when to harvest aubergine, how to check for ripeness, and the mistakes that lead to bitter, seedy fruit.
 
Let’s dig in.

When to Harvest Aubergine: Getting the Timing Right

Knowing when to harvest aubergine comes down to a few simple signals.
 
Here’s how to tell your aubergine is ready.

1. Size Matters, But Bigger Isn’t Better

When you harvest aubergine depends a lot on the variety you’re growing.
 
Most varieties reach their ideal size at around 6 to 8 inches long, while smaller types like Japanese or Indian aubergine are ready at 3 to 5 inches.
 
The key thing to remember is that oversized aubergine gets bitter and seedy.
 
So if you’re harvesting aubergine that’s larger than the mature size for its variety, you’ve waited too long.
 
Check the expected size on your seed packet so you know when to harvest aubergine at its peak.

2. Skin Should Be Glossy and Firm

The skin tells you almost everything about when to harvest aubergine.
 
A ripe aubergine has shiny, taut skin that reflects light.
 
If the skin looks dull, matte, or feels soft to the touch, that aubergine is past its prime.
 
You want to harvest aubergine while it still has that fresh, glossy finish.
 
Run your thumb gently across the surface.
 
If it springs back slightly, go ahead and harvest aubergine right away.
 
If your thumb leaves a dent, the fruit is overripe.

3. The Thumb-Press Test

This is the easiest trick for knowing when to harvest aubergine.
 
Press your thumbnail lightly into the skin near the middle of the fruit.
 
A ripe aubergine will give just a little, then bounce back.
 
An unripe one feels rock hard, and an overripe one stays indented.
 
If you’re unsure about when to harvest aubergine, this test never lies.
 
Just be gentle so you don’t bruise the fruit you plan to leave on the plant a bit longer.

4. Watch the Calendar and the Weather

Most aubergine varieties are ready to harvest 65 to 80 days after transplanting.
 
So mark your planting date and count forward to get a rough idea of when to harvest aubergine.
 
Keep an eye on the weather too, because cool nights below 50°F slow growth and can damage the fruit.
 
If a frost is coming, harvest aubergine immediately, even if the fruits are slightly small.
 
A slightly underripe aubergine beats a frostbitten one every single time.

Signs You’ve Waited Too Long to Harvest Aubergine

If you miss the window for when to harvest aubergine, the fruit will tell you.
 
Here’s what to look for so you don’t repeat the mistake.

1. Dull, Wrinkled Skin

Once the shine fades and the skin starts wrinkling, that aubergine is overripe.
 
At this stage, the flesh inside turns spongy and packed with hard seeds.
 
Sadly, you can’t fix an overripe aubergine by harvesting it late and hoping for the best.
 
Use it for compost or seed saving instead of the dinner plate.

2. Brown or Soft Spots

Soft, brown patches mean the aubergine is breaking down.
 
This often happens when you leave aubergine on the plant too long in hot, humid weather.
 
Pick it and toss it, because one rotting fruit can attract pests and disease to the whole plant.
 
Check your plants every couple of days during peak season when it comes to when to harvest aubergine.

3. Seeds Turning Dark and Hard

Cut open an aubergine that stayed on the plant too long and you’ll see dark, hard seeds.
 
That’s a clear sign you missed the ideal moment for when to harvest aubergine.
 
Ripe aubergine should have pale, soft seeds you barely notice when eating.
 
This is why checking your plants often is so important during harvest season.

How to Harvest Aubergine the Right Way

Once you know when to harvest aubergine, picking it properly matters just as much.
 
Use sharp pruning shears or a clean knife instead of pulling.
 
Aubergine stems are tough, and yanking can damage the plant or uproot it.
 
Leave about an inch of stem attached to the fruit.
 
Harvest aubergine in the morning when the fruit is cool and hydrated.
 
Handle each aubergine gently, because the skin bruises easily.
 
Store your harvest aubergine in a cool spot and eat it within a few days for the best flavor.

So, When to Harvest Aubergine?

You should harvest aubergine when the fruit is firm, glossy, and fully sized for its variety.
 
Check the skin, do the thumb-press test, and keep an eye on the calendar.
 
Don’t wait too long, because overripe aubergine turns bitter and seedy.
 
And don’t pick too early, since aubergine won’t ripen much after harvest.
 
Stick to these signals, and you’ll nail the timing for when to harvest aubergine every season.