Q&A for How to Plant Potatoes

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  • Question
    How far apart should the hills be?
    Community Answer
    Around 12 inches apart, depending slightly on what variety you're planting (bigger tubers like Russet will tend to intertwine and choke off potential yield if less than a foot between, whereas fingerling potatoes won't require as much room.) It is a good practice to leave ample space no matter what genus you're investing in.
  • Question
    Is it bad to just cut the potatoes in half?
    Sander1
    Community Answer
    No, that's OK. There is only one requirement: Make sure every single part of the potato you plant has at least one eye bud (this is where they start to germinate).
  • Question
    What do I do if my plants are too tall and fell over?
    Community Answer
    Get a support stick, which is available at gardening shops, and tie the stem to the stick for support. Twine is very durable.
  • Question
    I planted my potatoes in early April and they are now about three feet off the ground with lots of branches and leaves. Should I cover the roots?
    Community Answer
    You could start making a pile of dirt around the base of the plant to slightly multiply yields and have more moisture.
  • Question
    Can potatoes from the supermarket be grown?
    Community Answer
    Yes they can, but only if they have roots growing from them. Some potatoes (especially in the giant bags) have at least one root growing from them, which you can plant and they should grow if they have the right conditions as outlined in this article.
  • Question
    How do I know when it is time to harvest the potatoes?
    Community Answer
    Full size potatoes can be harvested in the fall, when the plants have died down completely, and all foliage turns brown. Baby potatoes can be harvested starting in the spring, as soon as potatoes form.
  • Question
    What are potato tubers?
    Community Answer
    Potato tubers are potatoes that have been prepped for planting--as opposed to potato seeds or potatoes that are not prepped. Simply put, it's a dried out, chopped up potato.
  • Question
    Do I soak potato eyes in water before planting?
    Community Answer
    No, they have no hard coating to soften and the soaking may cause them to spoil.
  • Question
    Can a second planting be done for fall harvesting?
    Community Answer
    You can plant potatoes in stages. Every 4 to 6 weeks for 3 sowings if you have a long growing season. If your potato variety has a very short growing time, you could sow up to 4 times, but the last one might end up being just baby potatoes if it is too close to first frost.
  • Question
    Should potatoes have any germinating buds before planting?
    Community Answer
    Yes, the potato must have germinating buds prior to planting.
  • Question
    How do I get potatoes to sprout eyes?
    Community Answer
    Keep them covered in a moist cloth or gunny sack in darkness. The sprouts will appear, then you can cut them into pieces and plant.
  • Question
    How does a potato plant look when it is due for harvesting?
    Community Answer
    You can harvest it when it has flowered or most of the new growth is dying back.
  • Question
    Can potato foliage be trimmed back at any time, and will that help with development of the tubers?
    Community Answer
    No, they would get stressed in tuber and new growth development, and you'll have smaller yields.
  • Question
    My potato seedlings have three-to-four inch sprouts, can they still be planted?
    Community Answer
    You can plant a sprouted potato with any length sprouts. It can be helpful to start with a longer sprout, as it's akin to planting a seedling in your garden versus seeds, it stands a better chance because it's already established to some extent. However, any length can work provided the soil is nutrient rich and the growing environment is good.
  • Question
    How much sunlight does a potato plant need?
    Community Answer
    Plant in a sunny spot. Potatoes need high heat & plenty of sunshine. Do not plant in a shady spot.
  • Question
    What bugs and other animals do I have to look out for?
    Community Answer
    Mostly aphids, though rats or voles will eat some tubers.
  • Question
    I soaked a brick of coconut coir in a bucket of rabbit manure tea, and it expanded and filled the bucket with moist substrate. Is this good to plant my potatoes in?
    Community Answer
    Probably, but I would combine half of that with some fine sand for better drainage; if the coir holds too much water, the potatoes will rot.
  • Question
    Are potatoes planted with the eyes down or up?
    Community Answer
    It shouldn't matter, as, like all plants, the eyes will grow up to the sunlight.
  • Question
    Must I use fertilizer? Should I use organic or inorganic?
    Community Answer
    You don't always need to use fertilizer, though it helps. Of course organic is better. You can chop banana peels and apply them to the soil where your plant grows.
  • Question
    If I bought potatoes to eat and they have small sprouts, does that give me advantage of popping them directly into the soil, or do I still need to go through the whole procedure?
    Community Answer
    You should be able to just pop them in the ground to sprout!
  • Question
    Can I plant potato sprouts indoors if I have sprouts after the frost has already started?
    Community Answer
    Yes. A large plastic storage bin (with soil) in a sunny spot, or with grow lights, will work. It may take longer because the sunlight is weaker, but they can be moved outdoors in the spring.
  • Question
    Do I cover the potatoes with soil when planting?
    Community Answer
    Yes, plant a potato 4 inches deep into a small mound. Cover it loosely.
  • Question
    Does the potato stop growing after the plant dies?
    Community Answer
    Yes, the potato will stop growing if the plant dies.
  • Question
    Should I plant the potato sprout facing up or facing down?
    Community Answer
    It can be planted both ways. Open the row and just drop the potato pieces in the trench. Next, rake a few inches of soil over the pieces of potato. After the plants are about 6-8 inches tall, sprinkle Treflan along each side of the plant. Sprinkle the herbicide the width of the tiller. Next, till the Treflan in to a depth of about 4 inches. Rake the tilled soil to the potato plants. Leave just a couple of inches sticking above the dirt.
  • Question
    The eye has grown about 3 inches, is it still ok to plant it?
    Community Answer
    Yes. This is actually ideal. Chitting the potatoes first and allowing the shoots to grow to a tleast 3 inches will produce stronger plants.
  • Question
    How do I prevent potatoes from turning poisonous?
    Community Answer
    Make sure any new potatoes are completely covered by soil, straw, or mulch and are not exposed to sun. This will prevent them from greening.
  • Question
    Does it ever get too hot for growth?
    Community Answer
    Generally potatoes grow well through hot summer days, as long as they are kept watered and pest free.
  • Question
    I have moved to a house with only a patio and would like to grow potatoes in a bag. Do they need soil or can I use a bag of shop-bought compost only?
    Community Answer
    Potatoes can be grown in good bagged garden soil or potting soil. If you use compost be sure it is fully “cooked” or your potatoes will be susceptible to scab, a bacterial disease which requires peeling your potatoes before eating.
  • Question
    How long after planting the potatoes should I see growth?
    Community Answer
    If you plant when the daily temp is over 60ºF, then you should see the first shoots within two weeks.
  • Question
    Should sprouts be removed from potatoes before planting?
    Community Answer
    No, keep them and position them carefully in the soil so they don't break off. They will become the new plants.
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