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How to Plant a Sprouted Potato

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Did you discover the potatoes you bought from the grocery store awhile back and forgot about have suddenly sprouted in the depths of your pantry? What should you do? Toss them out? No way! They’re still good! You can actually plant those sprouted potatoes to regrow new potatoes and I’m going to tell you how to do it.

Can you plant sprouted potatoes?

Yes! You can plant a sprouted potato and grow more potatoes.

You will actually get several potato plants and ultimately a bunch of new potatoes from just one sprouted potato if you do it right.

How to Regrow Sprouted Potatoes

You can plant any kind of sprouted potato from sweet potatoes to yellow or white potatoes.

Here’s how.

Sprouted Potatoes
When you accidentally let your potatoes get old and they grow sprouts… Don’t throw them away! You can plant those sprouts and grow several new potatoes.

First, don’t plant the whole potato in the ground. You’ll need to do a little bit of prep to get your sprouted potatoes ready for planting for best results. Don’t worry, it’s easy. You don’t need to be a gardening expert to pull off growing potato plants. Just follow these steps…

Step 1

First, prep your garden bed by mounding soil into rows.

You’ll want to plant your potato sprouts within 2-3 days of preparing them so it’s best to get your garden bed ready to go, first.

Potato plants grow best when you mound the dirt. This is because potatoes grow underneath the soil. The leaves of the potato plant grow above ground but the roots and potatoes will all develop underground. So the bigger the mound of dirt you create, the more room the potatoes will have to grow.

You can easily mound the soil in your garden by scooping the dirt on either side of the row you create and piling the dirt up in the middle. You want the soil to mound between 8″ and 12″ tall.

Mound Dirt 8" - 12" High

I don’t use a special tool for this other than gloves. I just mound the soil with my hands. For larger gardens, you can use a shovel, gardening hoe or rake.

Rows should be about 1 foot apart.

Step 2

Count your potato sprouts.

The number of plants you’ll be able to get from each potato will depend on how many sprouts the potato has.

A potato sprouts from the eyes on the potato. Each sprouted eye can be cut and grown into a plant. If an eye has multiple sprouts, go ahead and leave those grouped together when you make your cuts.

Sprouted Potato

Each sprouted potato will offer a different number of sprouts.


Step 3

Cut each sprout using a serrated kitchen knife.

Cutting Potato Sprouts
Carefully cut each sprouted eye leaving a small amount of the potato attached.

Separate the sprouts by cutting away each sprout or group of sprouts, leaving a small amount of potato attached to the sprout.

You’ll want to plant your potato sprouts within 2-3 days of cutting. Ideally, you will want the skin to dry enough to seal out disease but not too much so that the sprouted parts dry up. You do not need to store the sprouts in water or soak them before planting. Do store them in a cool, dry place after cutting.

Step 4

Plant your potato sprouts.

Potato sprouts should be planted cut-side down, sprout-side facing up. You’ll want to plant each sprout 3-4″ below the surface of the soil. Plants should be spaced out at least 12″ apart so the plants have room to grow both below and above ground.

Planted potato sprouts will take about a weeks to push through the soil and open up their leaves. Keep the plants watered and make sure they get plenty of sun.

Potato plants in mounds of soil

Step 5

Continue to water and weed around your potato plants.

Fertilize your soil if its not very rich. As the plants grow, you can continue to mound soil around the base of the plant.

In general, potatoes need about 3 months to grow and produce a harvest. Some varieties may require more or less time.

Step 6

Harvest your potatoes.

Holding Potatoes

Since the potatoes grow underground, its tricky to tell what you’ll get in terms of size or number of potatoes. However, you’ll known that your potato plants are ready to be harvested when the visible plant dies off either after the first frost or on its own, usually in the fall.

Then for the fun part! Harvesting potatoes is like digging for treasure. Grab a garden fork and/or some garden gloves if you want to use your hands and dig in! Sift throw the mounded dirt until you find your potatoes. You’ll likely get a variety of sizes.

Do not wash your harvested potatoes. You want to keep potatoes dry to avoid rot. To clean off the dirt, use a dry, soft vegetable brush. Store them in a cool dry place. Potatoes can usually be stored for up to 6 weeks or more.

If your potatoes begin to sprout before you get to use them… well, now you know what to do! Use that sprouted potato to grow more potatoes!

Harvested Potatoes

Potato Hardiness

The best potato growing season is spring through summer with a fall harvest but that can vary depending on where you live.

Potatoes grow best in cooler climates with at least 6 hours of sunlight a day. Potatoes will not typically survive temperatures less than 40˚F. Too warm isn’t good either though. Soil temperatures warmer than 80˚F may fail to produce to potatoes.

Did you know you can also plant sprouted onions?

Learn how to plant onions that have sprouted!

Now let’s make some food!

While you’re here, check out my easy recipes to get ideas for what to make with your garden-fresh potatoes!

Browse all my easy recipes

How to Plant Sprouted Potatoes

Leave A Comment

Bill

Friday 6th of May 2022

I have about ten potatoes that got to old for me to eat. can I just plant the whole thing? Eyes will be going all directions.

Marilyn

Saturday 14th of May 2022

@Bill, As it says in the article, trim leaving a small amount of potato around each sprout and plant sprout up.

Angela G.

Friday 6th of May 2022

Hi Bill, no do not just plant the whole potato. You should read the above post and follow the steps.

Brian

Friday 6th of May 2022

Straight forward no nonsense advice. Easy to follow and understand.

Helen

Thursday 28th of April 2022

HI! I bought seedling potatoes at the end of february and kept them in a dark cool place. They already sprouted about 8" straight flutes! Am i still ok to plant them? Any suggestions on how I can plant them into containers or buckets? Thank you so much!

Helen

Monday 2nd of May 2022

@Angela G., one more question ☺️ The container I have is a very large rectangle. Is it ok to mix 2/3 different potato varieties in the same container? Or should they be planted separately? I think I have 5 red, 5 white and one sweet potato

Helen

Sunday 1st of May 2022

@Angela G., It definitely helps! Thank you so much!

Angela G.

Thursday 28th of April 2022

Hi Helen, as long as the sprouts have green leaves you should be good to go ahead and plant them! Since they are tall you can plant them and then mound some dirt around them a bit to prop them up. If you’re planning to put them in a container you’ll need to make sure the container is very large so there’s enough room for the potatoes to grow under the soil. The plant also gets pretty big. The pot needs to be well drained (I put a layer of rocks at the bottom of the pot then fit with soil) and the plant needs to be in full sun. Hope this helps! Good luck!!

Angela L

Monday 25th of April 2022

Thank you so much for the tips on regrouping both onions and potatoes! It will be my first attempt, excited!

Katherine

Sunday 24th of April 2022

Thank you for these tips. This is my first attempt with potatoes. I'm in a supposedly semi-tropical environment but we do get winter and we are going into what promises to be a mild fall and winter. Even though you said to plant in spring, I am going to experiment and see if they will grow now, in early fall.

Angela G.

Monday 25th of April 2022

Experimenting is fun! Let’s us know how it works for you!