How to Grow Potatoes From Store Bought Potatoes - Gardening Channel (2024)

How to Grow Potatoes From Store Bought Potatoes - Gardening Channel (1)

When deep winter snows cover the ground, many of us tend to dream of harvesting succulent fresh vegetables and fruits.

Potatoes taunt us because they are a staple food in many people’s diets. As the eyes start to sprout, we are reminded of the gardening season that lies ahead.

For some, the temptation of passing up something that is sprouting life is just too much of a temptation, so out comes the flowerpots and potting soil. Why not plant those sprouting potatoes?

You want to know how to grow potatoes and you want to start off in the best way possible. You could need information for the following reasons:

Reason A: You’ve been thinking about gardening for some time and wondering what to grow. You recently came up with the idea of trying to grow potatoes (Solanum tuberosum). The only problem is, you’re not sure how to go about it.

Reason B: You’ve grown potatoes before, but you want to try something different this time.

Reason C: You’re a seasoned farmer or gardener looking for more information. You want to learn how to best grow your potato crops.

Whichever reason brought you to this page, you’re in luck. Here you’ll find what you need to get you started on growing potatoes from store-bought taters.

Seed Potatoes vs Store-Bought Potatoes

Experts disagree on whether store-bought potatoes should be planted. While some say store-bought potatoes are grown to be eaten – not planted – others report that they have grown fine tubers from the store-bought variety.

Many potato enthusiasts, on the other hand, will tell you you should grow your crop from seed potatoes. They’ll insist that it’s a safer choice compared to planting the store-bought kind. But what exactly separates the two?

Seed potatoes are, in the simplest terms, potatoes that were grown to be replanted. These tubers are supplied to gardeners and farmers with the intention to grow more from them.

When buying seed potatoes, it’s important to get certified disease-free ones. These have been tested for defects and given the government’s stamp of approval.

The main reason why these potatoes are encouraged is that they reduce the risk of crop and soil damage. Without guaranteed treatment, you could unintentionally introduce dangerous, long-lasting diseases.

They’re also meant to produce high yields and superb quality plants. Garden centers usually offer a variety of certified seed potatoes to choose from. These are cultivated in 15 states which have the ideal conditions for potato farming:

  • Idaho
  • North Dakota
  • Colorado
  • Maine
  • Montana
  • Minnesota
  • Wisconsin
  • Nebraska
  • Wyoming
  • Oregon
  • Michigan
  • Washington
  • New York
  • California
  • Alaska
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“U.S. No. 1 Seed Potatoes consist of unwashed potatoes identified as certified seed by the state of origin by blue tags fixed to the containers or official State or Federal State certificates accompanying bulk loads, which identify the variety, size, class, crop year, and grower or shipper of the potatoes, and the State certification agency.” – United States Department of Agriculture (USDA)

Store-bought potatoes can be treated as well, however, their treatment involves the application of sprout-inhibitors. These prevent the development of a potato’s eyes while stored or put on shelves. This blockage can then inhibit the growth of new crops and minimize yields.

Keep in mind that if you store your potatoes at a higher temperature they may sprout sooner and faster. A typical length dormancy period is around 2 to 3 months depending on storage method, potato variety and storage temperature. Inhibitors used include ChloroIsopropyl-N PhenylCarbamate (CIPC), Ethylene, Carvone and Maleic Hydrazide.

At the very least, use organic potatoes because they have not been treated.

Can I Grow Potatoes from Store Bought Potatoes?

If potatoes you buy from the store do manage to sprout, you should plant them. Not only are store-bought spuds readily available, but you also don’t have to wait weeks for them. Unlike certified seed potatoes for which you have to go through a long process and wait for delivery.

There is no real advantage to growing potatoes from store bought ones (those soft, sprouting grocery store potatoes will make good compost). Seed potatoes are no more expensive than the ones purchased for eating.

The Potato Planting Process

The Right Quantity of Potatoes to Plant

Deciding on the number of potatoes to plant can be difficult. Your decision will depend largely on two factors:

  1. How many potatoes you wish to sell or consume.
  2. How much space you have to plant crops.

Some gardeners cut their potatoes into chunks before planting them. This should be avoided as the exposure of the inside of the potato can make them perceptible to disease, rot and pests.

These factors vary depending on the type of potatoes you have, but there are averages you can use.

To help you determine the number of tubers – and feet apart – when planting in your garden, here are a few facts to consider:

Planting Aspect
Quantity
Weight of average potato (ounces)
Cut large potatoes into different chunks but keep small ones as they are.
1.5 – 2 oz
Space between each standard potato (inches apart)
Space determines the size of your potatoes. The closer they’re planted, the smaller your tubers come out.
8” – 12”
Minimum number of eyes per potato or chunk
Always grow your potatoes with eyes upward.
1
Average yield ratio of seed to crop cultivated (pounds)
Higher yields mean you have healthier soil to plant in.
1:10

The Ideal Fertilizer to Use

Before fertilizing your soil with anything, it’s important to conduct a soil test and see how healthy it is. It’s the best way to know what your soil needs without adding any unnecessary or harmful elements.

The ideal soil environment for your potatoes to grow in includes:

  • Soil mixed with compost and a combination of macronutrients. Potatoes consume nutrients such as nitrogen, potassium, and phosphorus.
  • pH levels of 5.0 to 6.5.
  • Soil that hasn’t been in heavily treated turf over the past year.
  • Soil that doesn’t contain any decaying green matter.

Keep controlling the quality of your soil through soil tests even after planting.

What is the Best Time of Year to Plant Potatoes?

Planting new potatoes isn’t a quick process. The process starts at the beginning of the growing season.

You need to give the soil time between preparing the bed and planting. Generally, 2 to 6 weeks is an acceptable amount of time between the two procedures.

The best time of year to plant is in the early spring with temperatures of at least 45°F, after the cool weather is mostly finished and the soil temperature begins to rise.

How to Plant Potatoes

Planting potatoes takes a few simple steps. Laura at Garden Answer provides a step by step guide in this video.

Prepare the planting area by loosening the soil 10 inches deep to 12 inches deep.

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Mix a fertilizer high in nitrogen with your soil.

How to Grow Potatoes From Store Bought Potatoes - Gardening Channel (4)

Make trenches in the soil about 4 inches deep and plant your potatoes about 4 inches apart.

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Cover the potato pieces with about an inch of soil.

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Water your potatoes plant, especially during the flowering stage when they’re producing tubers.

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As the plants emerge, mound the soil by pushing it up around the stem. Eventually, it will look as though you planted the spuds in hills. Dig potatoes from the raised bed rows, removing any vines. Begin to harvest potatoes and place into bags.

Taking Care of Your Potato Plants

Hilling Potatoes

Every farmer and gardener understands the best way to plant potatoes is to hill the soil around your planting potatoes. This is the process through which you create small mounds of soil around your tubers. You should always hill your potatoes because it allows you to:

  • Keep your potato plants safe from weeds in the spring by uprooting unwanted, wild plants.
  • When you seed potato plants create an effective drainage system so that your new potatoes aren’t submerged in water.
  • Protect potatoes from sunlight. This leads to photosynthesis and the greening of your plants. This is when your potatoes turn green. The formation of green stains beneath the potato skin is harmful to anyone who eats the tater.
  • Enhance the yield of your plants. When you plant tubers, they create two kinds of stems. Those that grow foliage above the ground, and those that grow new potatoes below it. By wrapping the stem above ground in soil, you increase your yield of potatoes.

Watering Your Crop

Making sure your potato plant gets one to two inches of water on a weekly basis should suffice. Water needs become more important for different reasons throughout the first 90 days:

  • First 30 days: Your potatoes need water but not critically.
  • Between 1 and 2 months: Their water needs are important for crop growth.
  • Between 2 and 3 months: Potatoes need water to expand.
  • Between 3 and 4 months: Water is still needed but not in the same quantities as before. This is the period right before the harvest when the top of the plants turn yellow and die out.

Pest Control

Typical insects that feed on your potatoes include:

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When it comes to cultivating potato plants, ensure your crops are protected from pests:

  1. Before they appear.
  2. Throughout the growing process.
  3. Beyond the harvesting phase.

To achieve adequate pest management, you need to:

  1. Rotate your crops often.
  2. Stay vigilant and look out for any eggs, larvae, and adult insects.
  3. Gather as many insects as possible and put them into water or squash them if they appear.
  4. Treat your yields with safe insecticides, depending on the type of pest you’re dealing with.

Harvesting

When to Harvest

Different kinds of potatoes mature at different times. The best way to know when to harvest your potatoes is to know their variety and their Days To Maturity (DTM).

Most varieties will mature within 90 days and it’s best to plant those that won’t take more than 4 months to grow. Otherwise, you risk growing disappointing batches because of the summer heat which affects the soil.

How to Harvest

When harvesting potatoes in your garden, you can collect them from the soil using three tools:

You want to start digging near your bed’s boundary so that you don’t accidentally pierce the tubers you can’t see. Remove the soil along the mounds you created through hilling so that you can clearly see them.

Once that’s done, wait for your tubers to dry for half an hour before picking them and storing them. You want to keep them in a cool, dry place away from sunlight until you sell or consume them. Remember, light leads to your potatoes greening and becoming toxic for consumption.

Learn More About Potatoes

There’s more you can learn about the wonderful world of taters online. This article from Good Housekeeping, for example, provides ways of growing potatoes in different yards.

Click on the links below to get answers on frequent potato planting questions:

How to Grow Potatoes From Store Bought Potatoes - Gardening Channel (10)

Photo from Pexels

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How to Grow Potatoes From Store Bought Potatoes - Gardening Channel (2024)

FAQs

Can I grow potatoes from store bought potatoes? ›

You buy a bag of potatoes and before you can use them, they begin to sprout. Rather than throwing them out, you may be contemplating growing grocery store potatoes in the garden. Will store-bought potatoes grow though? The answer is yes.

How do you plant store bought potatoes in the garden? ›

And, since your store bought potatoes are not certified to be disease free, it's best to keep them out of your garden beds! The safest way to grow store bought potatoes is to grow them in pots or containers. By growing them in containers, you are able to easily throw out the soil and plant material if blight occurs.

How do you grow potatoes from potatoes in a potato container? ›

Prepare: Cut seed potatoes into chunks having at least 2 eyes each. Allow the pieces to dry and callous over, about 2 days. Fill the Smart Pot container about 1/3 full with a 50/50 mixture of garden soil and compost. Plant: Plant one seed potato for each 3 gallons of Smart Pot container.

Why should you not plant store bought potatoes? ›

You can grow potatoes from store bought potatoes, but they are often treated with clorproham (an herbicide/sprout inhibitor). Potatoes without sprouts are more attractive on store shelves. However, treated potatoes take longer to sprout, and the resulting plants may show stunted growth.

How many potatoes will grow from one potato? ›

You should get about four pieces from an average-size seed potato.

How do you get a store bought potato to sprout? ›

Mix a fertilizer high in nitrogen with your soil. Make trenches in the soil about 4 inches deep and plant your potatoes about 4 inches apart. Cover the potato pieces with about an inch of soil. Water your potatoes plant, especially during the flowering stage when they're producing tubers.

Should I soak the potatoes in water before planting? ›

Potatoes do not need to be soaked in water before planting, but they can be if you would like, as it is beneficial. Soaking potatoes can help them germinate more quickly and help them establish a better root system. Soaking potatoes in water before planting can help them to sprout faster and produce higher yields.

What do you coat potatoes with before planting? ›

A 6-ounce potato can be cut into four seed pieces, each with at least one good bud or eye. Let pieces dry for a few days before planting to help avoid rot. You can also help prevent disease and insect injury by coating the seed pieces with elemental sulfur (place seed pieces and the sulfur in a bag and shake).

What is the fastest way to sprout a potato? ›

To speed up the sprouting process, place onions or apples alongside the potato tubers. The gases released by the fruit encourages the potato to sprout. Keeping a moist rag or even damp leaves alongside them will also help stop the tubers becoming all wrinkled and dried out.

What month do you plant potatoes? ›

When to Plant Potatoes. Potatoes grow best during cooler weather. Plant potatoes 2-4 weeks before the last frost in the spring, when the soil temperature is at least 40 degrees F. In warm climates, potatoes are planted from January to March and harvested between March and June.

How many potatoes can you grow in a 5 gallon bucket? ›

If you've only got 5-gallon buckets, plan on using only two potatoes. Expect a 5-gallon bucket to yield a couple of pounds of potatoes. So if you're feeding a family or just love potatoes, do more containers or bigger ones.

Do potatoes grow better in pots or in the ground? ›

Potatoes grown directly into the ground will provide a better yield by weight than those grown in containers.

Can I plant potatoes I just harvested? ›

If you're thinking you could simply replant some of your summer-harvested potatoes, I'm afraid this will only meet with disappointment. Potatoes need a period of dormancy before they can sprout into a new plant, so in this case you really will need to start with genuine seed potatoes.

Can you plant potatoes in just potting soil? ›

Like garden-grown potatoes, container-grown potatoes need rich, well-drained loamy, soil. A mix of potting soil and compost with added sand (about 20% of the total) serves potatoes well. Add a handful of well-balanced organic fertilizer as you're making your soil-compost mix.

What is the best companion plant for potatoes? ›

13 Companion Plants to Grow Alongside Potatoes
  • Alyssum. Alyssum is a ground-cover flower that attracts beneficial insects and serves as a natural mulch to retain soil moisture and deter weeds.
  • Cabbage family plants. ...
  • Corn. ...
  • Chives. ...
  • Cilantro. ...
  • Flax. ...
  • Horseradish. ...
  • Leeks.
Jun 7, 2021

How many potatoes do I need to plant for a family of 6? ›

Planting a vegetable garden for a family
Crop (number of plants per ft. of row)Number of plants per person
Onion (4 sets/ft. of row)12-20 sets
Peas (6 plants/ft. of row)15-20 plants
Pepper (1 plant/ft. of row)3-5 plants
Potato (1 plant/ft. of row)10 plants
15 more rows
Mar 12, 2018

How many eyes do you need to plant potatoes? ›

Try to have at least 2 eyes per seed piece; one will do if that's all you can find. You can cut the potato any which-way to achieve this. Avoid cutting eyes if you can when making your cuts. Some folks like to let seed pieces dry before planting.

Can I grow potatoes from old potatoes? ›

All you need is a sunny space to grow them, a steady supply of water, and seed potatoes (the sprouted portion of a potato that you plant in the ground). So, yes, it's true: you can grow potatoes from potatoes!

Do potatoes sprout faster in the dark? ›

Fun fact: Potatoes don't actually need soil to sprout—they just need favourable environmental conditions. So, if you keep your potatoes somewhere that it's cool, dark, and they have access to moisture, they will joyously begin to spread their sprouts and grow in the shadows.

Can you plant potatoes that have not sprouted? ›

No, you should not plant a potato that has not sprouted. A potato that has not sprouted may grow into a new plant, but this is not guaranteed. You have a much better chance of successfully growing a healthy new plant if you encourage the potato to sprout before you plant it.

What happens if you bury a potato? ›

Cover each potato with about three inches of soil. After a few weeks, the potato plants will begin to sprout. Then you can gently fill the trench with another few inches of soil, leaving the top of the plant exposed. This is called “hilling” and it protects the potatoes from the sun, as well as supports the plant.

Do you water potatoes right after you plant them? ›

Maintain even moisture, especially from the time after the flowers bloom. Potatoes need 1 to 2 inches of water a week. Too much water right after planting and not enough as the potatoes begin to form can cause them to become misshapen. Stop watering when the foliage begins to turn yellow and die off.

How long do you chit potatoes before planting? ›

The potatoes will need 4 to 6 weeks of chitting before they are ready to plant. This will give them a chance to sprout and start putting on growth. You can start chitting potatoes from late January onwards ready for planting in mid-March to April or when soil temperatures reach about 6-10 degrees.

What do you add to soil after potatoes? ›

A year after your potato harvest, plant low-yielding, leafy vegetables, such as lettuce, radish (Raphanus sativus), pea (Pisum sativum) and spinach. Followed by green manure the year after, which will replenish organic matter in the soil and rebuild humus.

Why do you cut potatoes in half before planting? ›

Seed potatoes can be cut in half before planting, to increase your crop of spuds.

Should you use Epsom salt when planting potatoes? ›

Also add some epsom salt to the soil when planting to help provide a boost of magnesium that will help build cell walls of the potato. With these simple tips you'll be well on your way to growing a healthy potato crop that you can put in your root cellar and eat off of for several months of the year.

How many potatoes does it take to grow per hole? ›

One pound of seed potatoes yields about 8 to 10 seed pieces for planting. That's enough for a 10 foot long row if the pieces are spaced 12 inches apart.

How many potatoes will grow from one sprout? ›

You can expect about three to six regular-sized potatoes and a few smaller ones from each plant.

Do you chit potatoes in the dark or light? ›

Indirect light for the entire day is the best way to achieve healthy sprouts when chitting seed potatoes. It takes two to three weeks to chit / sprout seed potatoes. You want deep green shoots which are about 1cm to 2cm (half to 1in) long.

How deep do you plant potatoes? ›

Potato plants grow best when they're planted at least 6 to 8 inches beneath their soil. Though these plants are low maintenance, planting them at the correct depth can make the difference between plants that grow to be healthy and large and those plants whose growth become stunted from malnourishment.

How long do potatoes take to fully grow? ›

Now reach into the soil with your hands and pull the tubers up. How long do potatoes take to grow? Small new potatoes can be ready as early as ten weeks. However, full sized potatoes take about 80-100 days to reach maturity.

Do potatoes need fertilizer? ›

Fertilizing is particularly important for potato crops, since they have somewhat high-maintenance nutrient needs. They need to be fertilized four to five times throughout their life cycle, and many farmers and gardeners use a different fertilizer blend each time.

Do you cover leaves when hilling potatoes? ›

Hilling brings loose soil around the vines where the potatoes will form as well as deepening the roots into cooler soil. With the first hilling, I like to cover the vines up so that only the top leaves are exposed.

How deep do you plant potatoes in a bucket? ›

Plant seed potatoes and whole tubers at the surface of your soil which you filled to the 4-inch mark on the side of your bucket. When planting potatoes, you'll want to space them at least six inches apart for maximum yield. This means you'll only have 2-3 plants per bucket, with 2 being the better choice.

Can you plant potatoes straight into the ground? ›

How to grow potatoes at home. Potatoes are easy to grow – one seed potato will produce many potatoes to harvest. Prepare the soil by digging and removing weeds, and then dig straight trenches 12cm deep and 60cm apart. In spring, plant seed potatoes 30cm apart and cover them with soil to fill the trench.

Do you cut and dry potatoes before planting? ›

Do you have to cut potatoes before planting? You do not have to cut your seed potatoes into pieces before you plant them, especially if they are particularly small, but most gardeners do cut their seed potatoes into pieces that have two eyes each.

Do you cut potatoes in half to plant them? ›

Cut them in half, or if the potatoes are really large, cut them into quarters. Make sure that each chunk of potato has at least one eye, which is a small depression in the surface of the potato where the roots sprout. If you need to cut seed potatoes, it is best to wait at least four to seven days before planting them.

Do you Mound potatoes when planting? ›

Potato plants should be “hilled” when the plants are 8 to 12 inches tall (Figure 7). Figure 7: When the plants are 8-12 inches tall they should be hilled to keep tubers covered and prevent greening. Mound the soil to a height of 3 to 6 inches and approximately 12 to 15 inches from the base of the plant.

How long after you cut potatoes should you wait to plant them? ›

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.

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