Can You Plant Potatoes from the Grocery Store?

Everyone · Explainer · Updated October 1, 2026 · LearnLife Editorial

What Does It Mean to Plant Grocery Store Potatoes?

Planting potatoes means growing new potato plants from existing tubers, which are the thick, starchy parts we eat. Each potato has "eyes," or small buds, that can sprout stems and leaves under the right conditions. Grocery store potatoes are usually meant for eating, not planting. This difference matters because many store potatoes are treated with chemicals to stop sprouting while on the shelf or may have been stored in ways that reduce their ability to grow. Some may also have diseases that can affect plant health.

For example, a potato bought at the grocery store might look healthy and have visible eyes. If you plant it in your garden, those eyes could grow into shoots, eventually producing new potatoes underground. But if the potato was treated to prevent sprouting, it might never grow. This distinction helps set expectations for gardeners trying to reuse grocery store potatoes for planting.

How Does Planting Store-Bought Potatoes Actually Work?

When you plant a potato tuber, the eyes send out shoots that become stems and leaves above ground. Below the soil, new tubers form at the ends of underground stems called stolons. For example, suppose someone buys a grocery store potato for planting. They first cut it into pieces, each with at least one eye, then plant them in rich, loose soil about 4 inches deep. Over the next several weeks, if conditions are right, sprouts will appear above the soil, grow leaves, and eventually produce new tubers underground.

However, there are challenges. If the potato was sprayed with sprout inhibitors, eyes may never grow. Also, grocery store potatoes might carry viruses or fungi that hinder growth or spread disease. These issues can result in weak plants or no harvest at all. The planting process requires patience and proper conditions: consistent moisture, good soil drainage, and protection from pests.

Why Should You Care About Using Grocery Store Potatoes for Planting?

Planting potatoes from the grocery store is appealing because it’s cost-effective and accessible. Instead of buying seed potatoes, you can try growing food from what you already have at home. This approach encourages sustainable habits and connects people with their food sources.

However, the risks include poor growth, disease spread, and limited yields. For example, if you plant grocery store potatoes that carry disease, not only might your plants fail, but neighboring gardens could be affected. Certified seed potatoes are inspected and free from common diseases, making them a safer choice for reliable harvests. Understanding these factors helps gardeners decide when to experiment with grocery store potatoes and when to invest in seed potatoes for better results.

What Are Seed Potatoes and How Are They Different From Store Potatoes?

Seed potatoes are tubers specifically grown and certified for planting. They undergo inspections to ensure they are free from viruses and diseases that can reduce crop health. Certified seed potatoes are usually untreated with sprout inhibitors, so they sprout reliably. They also tend to come from varieties selected for strong growth and good yields.

In contrast, grocery store potatoes aren’t subject to these standards. They may be varieties bred for taste or storage rather than growth vigor. They may also be treated with chemicals to prevent sprouting during shipping and storage, which directly impacts their ability to produce plants. Using certified seed potatoes greatly increases the chances of a healthy, productive crop and prevents the spread of diseases.

What Are the Risks and Challenges of Planting Grocery Store Potatoes?

Planting grocery store potatoes comes with several risks:

• Chemical Treatments: Many store potatoes are treated with sprout inhibitors such as chlorpropham. These chemicals prevent sprouting to keep potatoes fresh but also stop plant growth if you try to plant them.

• Disease Transmission: Potatoes can carry viruses, bacteria, or fungi harmful to plants. Using untreated grocery potatoes increases the chance of introducing diseases to your garden.

• Unpredictable Growth: Because grocery store potatoes vary widely in variety and treatment, growth results can be inconsistent. Some may sprout and grow well, while others fail or produce few tubers.

• Poor Storage Conditions: Potatoes stored in dark, cold warehouses may have lost vitality, making them less likely to sprout.

For example, if you plant a batch of grocery store potatoes and only a few sprout or the plants look weak, those problems likely come from these factors. To reduce risks, select organic or untreated potatoes and inspect them carefully before planting.

How Can You Prepare Grocery Store Potatoes for Planting?

If you decide to plant grocery store potatoes, preparation is key. Follow these steps to improve your chances of success:

1. Choose the Right Potatoes: Select organic or untreated potatoes with visible eyes or sprouts. Avoid any that are soft, shriveled, or heavily greened.

1. Cure the Potatoes: Let them sit in a cool, dark, well-ventilated place (around 50–60°F) for 1-2 weeks. This allows the skins to toughen up and encourages sprouting.

1. Cut Into Seed Pieces: Use a clean knife to cut the potato into pieces, each with at least one or two eyes. Let the cut pieces dry for a day or two to form a callus, which helps prevent rot.

1. Plant in Suitable Soil: Choose loose, well-draining soil rich in organic matter. Plant seed pieces about 4 inches deep with the eyes facing up, spaced about 12 inches apart.

1. Water and Care: Keep soil moist but not waterlogged. Mulch helps retain moisture and control weeds. Watch for pests like potato beetles and diseases like blight.

By following these steps, you give grocery store potatoes the best chance to sprout and grow into productive plants.

When Is the Best Time and Place to Plant Potatoes in Your Garden?

Timing and location matter when planting potatoes. In general, plant potatoes in early spring after the risk of hard frost has passed. For example, if your region’s last frost date is April 15, plan to plant potatoes around that time or a week earlier if your soil warms quickly.

Potatoes prefer full sun and well-drained soil. Avoid areas where tomatoes, peppers, or eggplants were recently grown, as these plants share diseases with potatoes. Preparing the soil by loosening it and adding compost or balanced fertilizer helps tubers develop well.

If you’re planting grocery store potatoes, extra care is needed to reduce disease risk. Rotate planting spots each year to avoid buildup of pathogens. Keep the garden clean and remove any diseased plants promptly.

How Do Grocery Store Potatoes Compare to Other Grocery Store Planting Questions?

People often wonder if other grocery store items can be planted. For example, grocery store garlic may be treated similarly to prevent sprouting, making it less reliable for planting than seed garlic from garden suppliers (Can You Plant Grocery Store Garlic?). Also, grocery store eggs cannot be hatched into chicks (Can You Hatch Grocery Store Eggs?), which is a different kind of planting question. Understanding what is possible with store-bought food helps set realistic expectations for home gardening projects.

Additionally, knowing where to buy and how to choose produce can affect outcomes. Farmers markets often sell local, untreated varieties better for planting experiments (Grocery Store vs Farmers Market: Pros and Cons). Learning how to ask important grocery shopping questions (Important Grocery Shopping Questions to Ask) and shop efficiently (How to Grocery Shop Efficiently) supports better food planning and gardening efforts.

Frequently asked questions

Can grocery store potatoes that have sprouted be eaten safely?

Yes, you can eat sprouted potatoes if you remove the sprouts and any green areas. Green parts contain solanine, a natural toxin. If the potato is shriveled or heavily sprouted, it’s safer to discard it.

How should I store potatoes intended for planting?

Store seed potatoes in a cool (around 45–50°F), dark, and humid place to prevent shriveling and promote sprouting. Avoid storing in the refrigerator, which is too cold and can affect growth.

Can I plant the small potatoes sold in grocery stores?

Small grocery store potatoes can be planted if they have eyes and are untreated. However, they often produce fewer tubers than certified seed potatoes. Preparing them properly improves success.

What pests should I watch for when growing potatoes?

Watch for Colorado potato beetles, aphids, and wireworms. Use physical barriers, hand-picking, or organic insecticides as needed. Healthy soil and crop rotation reduce pest problems.

How do I know when to harvest my potatoes?

Harvest potatoes when plants flower and the foliage starts to yellow and die back. Gently dig around the plant to find mature tubers. Early varieties mature sooner than main crops.