Q&A for How to Grow Potatoes Indoors

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  • Question
    Can you grow potatoes all year round?
    Maggie Moran
    Home & Garden Specialist
    Maggie Moran is a Professional Gardener in Pennsylvania.
    Home & Garden Specialist
    Expert Answer
    Yes, potatoes are a common year-round crop. Depending on the climate, you can either choose to grow potatoes inside or if you are in a temperate climate, they can be outdoors throughout the seasons.
  • Question
    Can you grow potatoes without sunlight?
    Maggie Moran
    Home & Garden Specialist
    Maggie Moran is a Professional Gardener in Pennsylvania.
    Home & Garden Specialist
    Expert Answer
    It is advisable to avoid the sun while in the potato tuber growing stage, however, the rest of the growth process definitely requires lots of sun.
  • Question
    Can you grow potatoes in the house?
    Maggie Moran
    Home & Garden Specialist
    Maggie Moran is a Professional Gardener in Pennsylvania.
    Home & Garden Specialist
    Expert Answer
    Yes, simply place potato sprouts in a wide container filled with a blend of pebbles, sand, and soil. Place the sprouts face down around 6 inches down.
  • Question
    Can you grow potatoes from a store bought potato?
    Maggie Moran
    Home & Garden Specialist
    Maggie Moran is a Professional Gardener in Pennsylvania.
    Home & Garden Specialist
    Expert Answer
    Yes, you can use a store bought potato to spawn other potatoes. Cut out the eyes of the potato, generally white, and use those to begin new potatoes. Be warned that not all store bought potatoes will spore, as some are treated not to.
  • Question
    Step 8 says to dig up the potatoes but they aren't edible. So what's next? How do you get edible potatoes? I'm confused!
    Community Answer
    You misread. It is the above ground tubers on the vines that are not edible (they are actually poisonous!). Those above ground tubers serve as a visible indicator for the ripe potatoes underground. The potatoes themselves should be ripe and edible.
  • Question
    Does it have to be a small see-through cup or can it be a small white cup?
    Community Answer
    A clear cup helps you to see when the water is dirty and needs to be changed, but the color of the cup itself does not matter.
  • Question
    Can I use one of my harvested potatoes for my next crop?
    Robert M Wood
    Community Answer
    Yes. You'll have to store the potatoes in a cool, dry place, preferably with layers of dry material such as clean paper shreds or dry straw around them.
  • Question
    I didn't cut my potato. Will it grow?
    Community Answer
    Yes.
  • Question
    When should I harvest the potatoes?
    Community Answer
    Harvest your potatoes when there are small tubers on the vines; these tubers aren’t edible, but it is a sign that your potatoes are ready to be dug up.
  • Question
    I have a potato that has six sprouts. Can I cut each one of them off and plant them that way?
    Community Answer
    You will want to leave at least a walnut sized piece of potato with each sprout. The potato is the nutrient pack for the sprout. It feeds the growing sprout while it's trying to establish roots.
  • Question
    Is it necessary to put the potato in the water cup without cutting it in half?
    Community Answer
    Before putting the potato in the glass of water, you have to cut it in half so it can absorb the water.
  • Question
    How do I plant a potato that has sat too long and it's sprouted on its own?
    Community Answer
    Plant it as you would a typical quartered seed potato. A lot of the work and waiting is already cut out for you.
  • Question
    In Step 5, do I have to cover the leaves with mud also?
    Community Answer
    No. This is unnecessary because the nutrients from the soil are absorbed through the roots of the potato rather than the leaves. Also, to clarify, you MUST be using soil, NOT mud. Preferably organic soil mixed with cow feces and straw for best results.
  • Question
    If I don't plan on harvesting the potatoes, can I plant them in normal dirt?
    Community Answer
    If you don't plan on harvesting the potatoes, you can plan them in anything.
  • Question
    How do I grow my potatoes indoors if there is no sunlight?
    Community Answer
    You can use a special light that acts as the sun and provides them with the energy that they need to grow and produce.
  • Question
    If I want a vine, do I plant sweet potatoes or white potatoes?
    Community Answer
    Sweet potatoes. Russets, redskins, and other potatoes of Solanum tuburosum grow on more of a bush than a vine. (It looks a bit like a young tomato plant, actually.)
  • Question
    Is it OK to eat raw potatoes?
    Community Answer
    It's okay to eat a small amount of raw potatoes, but they're not considered safe in large amounts.
  • Question
    How much water do my plants need?
    Community Answer
    Your plants will actually need more water than you think, but make sure not to over-water them. For growing potatoes Indoors, you will need about 5 more gallons of water than outdoor potato plants.
  • Question
    How often should I water a potato plant when newly planted and thereafter? Thanks!
    Community Answer
    Like with any plant, the instructions should tell you how much water it needs. Pay attention to the leaves. If they are full and flush, then odds are the plant is getting sufficient water. If they're droopy, you should have watered it a couple of days ago. If you pay attention to the leaves, you'll learn how frequently you should be watering your plant. With container plants, it's riskier to overwater than to underwater - plants bounce back from a bit of drought stress until you learn their rhythms, but few plants can recover from root rot.
  • Question
    How do I grow potatoes inside?
    Community Answer
    Potato plants need full sun, so you will want to plant them where they'd have at least 4-5 hours of direct light per day.
  • Question
    What should I do if there are some insects on my potato plant's leaves?
    Community Answer
    If it's too hard to remove the insects and they affect only a few leaves, you can remove the affected leaves.
  • Question
    Can I plant an uncut potato?
    Community Answer
    Yes, you can definitely plant your potatoes whole. Cutting them before planting means you will be cutting off "eyes" to multiply seedlings. This is getting multiple seeds from each potato.
  • Question
    When can I tell if my potatoes are growing?
    Community Answer
    When you start to see small tubers on the vine itself, you know your potatoes are growing below. Refer to method 2 above - # 8.
  • Question
    My potato is turning stinky. Would I have to restart the process with a new potato?
    Community Answer
    Yes. You don't want a stinky potato, because it will get moldy. Always start with a new potato.
  • Question
    How many potatoes does a single potato grow?
    Community Answer
    That depends on the number of eyes the potato has. A singular potato can produce many potatoes.
  • Question
    How long will it take to grow potatoes?
    Community Answer
    It usually takes about 10 weeks.
  • Question
    How long overall will it take to grow the potatoes?
    Robert M Wood
    Community Answer
    Most potatoes will grow, from seed to full harvest, in about 3 months. Environmental conditions can change this time, so utilizing the visible signs of small tubers appearing above ground, and the stalk beginning to wilt, are the most effective methods.
  • Question
    Is there a specific water type I need to use?
    Community Answer
    The best water for plants is water that's already a few days old, but tap water will do just as well.
  • Question
    Do the eyes of the potato go in the water when sprouting, or above water?
    Renee Wasser
    Community Answer
    The eyes go in the water so they can grow. Without being submerged, they won't.
  • Question
    What do I do if my potatoes don't have eyes?
    Community Answer
    That means they are very young and you'll have to wait for them to sprout.
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