When Are Home Grown Potatoes Ready To Pick

Home grown potatoes are ready to pick when the plant’s foliage has completely died back and the skins have had time to set.
 
This usually happens about two to three weeks after the flowers fade, but it can depend on the variety and your local climate.
 
If you’ve been watching your potato patch and wondering exactly when are home grown potatoes ready to pick, this guide will clear up all the guesswork for you.
 
We’ll talk about the signs to look for, the best digging techniques, and how to know if your potatoes are truly mature for storage.
 
Let’s dig into the details so you can harvest at the perfect moment every single time.
 

When Are Home Grown Potatoes Ready to Pick: The Main Signs

When are home grown potatoes ready to pick? The simplest answer is when the tops of the plants have yellowed, flopped over, and dried out completely.
 
This natural die-back signals that the tubers beneath the soil have stopped growing and are now focusing on thickening their skins.
 
Depending on your planting date, this could be anywhere from 70 to 120 days after you put the seed potatoes in the ground.
 
Early varieties like “Charlotte” or “Rocket” are often ready sooner, while maincrop types such as “King Edward” take the full season.
 
You can also scratch away a little soil at the base of a plant to check the size of the potatoes before you commit to a full harvest.
 
But remember, the foliage die-back is your most reliable indicator for when are home grown potatoes ready to pick for storage.
 

1. Check the Flowering Stage for New Potatoes

If you want tender “new” potatoes, you can start harvesting about two weeks after the plants flower.
 
At this point, when are home grown potatoes ready to pick? They are ready as soon as the blossoms open and then begin to drop.
 
These early spuds have thin skins and are perfect for boiling or roasting fresh, but they won’t store long.
 
Gently reach into the soil near the plant’s edge and feel for golf-ball-sized tubers to confirm they’ve formed.
 
You don’t need to lift the whole plant for new potatoes, just take a few from each hill and leave the rest to mature.
 

2. Wait for Full Foliage Die-Back for Storage Potatoes

For potatoes you plan to keep through winter, you need to wait until the leaves and stems have turned brown and brittle.
 
So, when are home grown potatoes ready to pick for long-term storage? Only after the plant has been dead for at least two weeks.
 
This waiting period allows the skins to “set,” which means they firm up and won’t rub off easily when you handle them.
 
If you dig too early while the foliage is still green, the skins will be paper-thin and prone to bruising and rot in storage.
 
Patience here is key, and it’s the difference between a crop that lasts months and one that spoils within weeks.
 

3. Test the Skin Firmness with Your Thumb

A quick thumb test can tell you if your home grown potatoes are ready to pick even before you dig them all up.
 
Unearth just one or two tubers gently and rub your thumb across the surface of the skin.
 
If the skin easily scrapes off, they are not ready for storage and you should wait another week or so.
 
If the skin stays intact and feels tough and slightly waxy, then the potatoes are mature enough to harvest fully.
 
This method is perfect if your foliage died back unevenly or if you’re impatient and need a quick answer.
 

How Long After Planting Until Home Grown Potatoes Are Ready to Pick?

The time from planting to harvest ranges from about 10 to 20 weeks depending on the type of potato you’re growing.
 
First earlies are typically ready to pick 10 to 12 weeks after planting, and these are your classic new potatoes.
 
Second earlies take about 14 to 16 weeks, giving you slightly larger tubers that still have tender skins.
 
Maincrop potatoes, which are your best storage options, need 18 to 20 weeks or even a bit longer in cooler regions.
 
So when are home grown potatoes ready to pick based on that timeline? Count backward from your expected first frost date.
 
If your area’s first frost is usually in mid-October, you should plant maincrops by late May so they have enough time to mature.
 
You can also check the seed packet or plant label, as most varieties list their expected days to maturity clearly.
 

1. The Weather’s Role in Maturity Timing

Hot, dry weather can speed up foliage die-back, but it can also stop tuber growth prematurely if the soil gets too warm.
 
In very hot summers, your plants might die back early, and you’ll wonder if the harvest is actually ready or just stressed.
 
In this case, rely on the thumb test before you dig up everything.
 
If the skins are still thin despite the dead foliage, give them more time in the ground with a little watering if the soil is dry.
 
Cool, rainy weather can delay maturity, so your potatoes might need extra weeks beyond the standard guideline.
 

2. Soil Moisture and Its Effect on Readiness

Potatoes that experience a wet spell right before harvest might have higher moisture content and softer skins.
 
If the ground is waterlogged, when are home grown potatoes ready to pick? They might be mature, but digging them out of mud is messy.
 
It’s best to wait for a dry day to harvest so the soil falls away from the tubers easily and they don’t end up caked in clay.
 
If rain is forecast for a week straight and your foliage is dead, you can go ahead and dig them up even if conditions aren’t perfect.
 
Just be extra gentle and dry them off before storing to prevent rot.
 

How to Harvest Home Grown Potatoes Without Damaging Them

Once you’ve confirmed when are home grown potatoes ready to pick, the next step is digging them up without slicing into them.
 
Use a garden fork or a spade and insert it well away from the plant’s base to avoid puncturing the tubers.
 
Start at the edge of the hill and work your way inward, loosening the soil in a gentle lifting motion.
 
If you hit a potato with your fork, the wound will often heal over, but it increases the risk of disease during storage.
 
So work slowly and feel with your hands for the tubers as you loosen the soil.
 

1. Lift the Entire Plant and Shake Off the Soil

Grab the dead stems near the base and gently pull upward to lift the whole root system out of the ground.
 
This often brings all the potatoes with it, revealing the full cluster of tubers dangling from the roots.
 
Shake off the loose soil, then lay the plant on the ground and pick off each potato by hand.
 
If some potatoes break off and stay in the soil, simply reach in and feel around for them.
 
This method is the most satisfying way to harvest, and you get to see exactly what your efforts produced.
 

2. Curing Your Potatoes Before Storage

After you dig them up, don’t wash them right away, as wet potatoes can rot quickly when stored in a dark place.
 
Instead, leave them on the soil surface for a few hours to let any surface moisture dry naturally.
 
Then, move them to a cool, dark, and well-ventilated spot for about two weeks to cure.
 
This curing process hardens the skins even further and heals any tiny nicks from digging.
 
Once cured, brush off the dry soil and store them in burlap sacks or cardboard boxes in a dark, frost-free shed.
 

What Happens If You Pick Home Grown Potatoes Too Early?

If you dig up your potatoes before the foliage has died back, you’ll be stuck with thin-skinned tubers that don’t store well.
 
These immature potatoes are still edible, but they need to be used within a few days or they’ll shrivel and sprout.
 
They also have a higher water content, which makes them mushy when boiled and less fluffy when baked.
 
So while early digging is great for fresh eating, it ruins your chances of having a winter supply.
 
If you’re unsure whether your planting is mature enough, always lean towards waiting an extra week rather than rushing.
 

So, When Are Home Grown Potatoes Ready to Pick?

Home grown potatoes are ready to pick when the foliage has fully died back and the skins are firm enough that they don’t rub off.
 
That’s the golden rule for storage potatoes, while new potatoes can be dug earlier once the plants have flowered.
 
Your timeline will vary based on variety and weather, but the plant itself always gives you the clearest signal.
 
Use the thumb test if you’re in doubt, and always harvest on a dry day for the cleanest results.
 
With these tips, you’ll know exactly when are home grown potatoes ready to pick, and you’ll enjoy a bountiful, long-lasting crop.
 
Happy digging, and enjoy the fruits of your labor straight from your own garden soil.