Growing Potato

Solanum tuberosum : Solanaceae / the nightshade family

Jan F M A M J J A S O N Dec
      P P              

(Best months for growing Potato in USA - Zone 5a regions)

  • P = Plant seed potatoes
  • Plant tuber. Best planted at soil temperatures between 50°F and 86°F. (Show °C/cm)
  • Space plants: 12 - 16 inches apart
  • Harvest in 15-20 weeks. Dig carefully, avoid damaging the potatoes.
  • Compatible with (can grow beside): Peas, Beans, Brassicas, Sweetcorn, Broad Beans, Nasturtiums, Marigolds
  • Avoid growing close to: Cucumber, Pumpkin, Sunflowers, Tomatoes, Rosemary

Your comments and tips

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09 Feb 23, Celeste Archer (Canada - Zone 5a Temperate Warm Summer climate)
Potatoes need potassium (also called potash). Further, potatoes need potassium at the VERY BEGINNING of their growth cycle -- that is, for some reason potato plants uptake all (or MOST) or their potassium at the VERY beginning of tuber formation. If at the very beginning of tuber formation (probably barely visible to the human eye) -- anyhow, if there is not enough potassium you WILL impact tuber growth. At a minimum you will have HOLLOW HEART -- which is potatoes with an empty middle -- the potato sort of grows like a balloon being blown up -- and the tuber will take from the middle to reinforce the outside walls -- that is why the smaller potatoes will not have hollow heart, but the larger potatoes will -- THAT IS TO SAY: potassium supply will impact not only SIZE of the potatoes but the density.
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06 Feb 23, Rob (USA - Zone 7a climate)
If you grow determinate potato they only grown on one level. There is absolutely no need or reason to keep piling up as the plant grows. Indeterminate potato will grow multi level but also no need to pile up. Not when container grown anyway. There is a gentleman that knows a ton on growing and constantly had tested different things. He has a great playlist on YT and his channel is simplify gardening. He is in Wales UK but really knows his stuff. Also knowing what potatos are early, second early variety helps as to when to get them started etc.
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05 Jan 23, Anonymous (Australia - sub-tropical climate)
Probably too much N fertiliser. It is not about growing a tall plant. It is about growing a plant that produces a crop. A good amount of general fert before planting and hill the soil up around the pant when about 12 inches
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24 Nov 23, Christian (USA - Zone 7b climate)
It is because it takes 3 months for Potash to become available in the soil. You always have to plan ahead when you are using Potash or, no matter how much you put on your tater plants they won't be able to access it.
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02 Sep 22, Geri (USA - Zone 7b climate)
Not enough water or not enough nutrients. My guess is water.
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19 Jul 22, dz (USA - Zone 10a climate)
I just read about Determinate and Indeterminate potatoes. Which varieties of Indeterminate potatoes do well in Zone 10A?
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21 Jul 22, Anonymous (Australia - sub-tropical climate)
Check on google what varieties are indeterminate and then see if any in your area.
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13 Jun 22, Deb (USA - Zone 10a climate)
How late can you start growing potato’s? My first batch was planted March 20 but plants are already wilting back and I was wondering if I could plant more in June?
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16 Jul 22, dz (USA - Zone 10a climate)
I live in Zone 10A and have been growing russet and golden potatoes in grow bags and large containers here for about three years, and I notice I can plant them year-round and they will grow, just slower in winter, and if we get an occasional frost, it may kill the top, and when temps hit around 100 or hotter the potato tops may die off also. No matter what time of year, my potatoes often grow for a few months and then the tops start to die off no matter the season or conditions, but I don't know why, so when that happens, I'll reduce the watering for a couple weeks and then harvest. I try to do "succession" planting, so I always have some potatoes growing, and am still experimenting with what works best, especially trying to learn more about correct watering for the Zone 10A conditions. I do have better success, producing more and larger potatoes, with 10-20 gallon and larger containers than the 7-gallon fabric grow bags.
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17 Jun 22, Anonymous (USA - Zone 10a climate)
Check the planting times for your zone.
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Showing 11 - 20 of 67 comments
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The handbook-which I provided the location to in my prior reply is not very beginner'ish but it is comprehensive covering issues you may never encounter- but you do need the reference material. I have a few thoughts to add. 1. Hilling up while the plant is growing-if you are covering leaves I find this fundamentally wrong. Leaves are specialized and designed to collect light, they are not roots. So I opt to plant my seed potatoes deep enough on day one- however I tend to have the luxury of very well airated, light soil. This means the seed potato has a steady air supply and can sense the heat from the sun even at deeper depths 2. Your seedpotatoes need all their potassium Immediately. Potatoes strangely take up all their potassium that they need really early. -and don't uptake more. If there is not enough potassium in the very early stages your potatoes might have hollow heart (looks like hollow rotting middles). Late application of potassium tends to be useless 3. Potatoes seem to respond really well to the addition of microryzal fungi - in my area we source that under pine trees in a forest- we just take some forest floor duff with a dust pan and add to the potatoe planting soil. To sum up - your seed Potatoes should be about the size of chicken eggs (if larger cut up ensuring an eye on each piece and allow a few days to heal/scab up before planting). You need to chit them(make them sprout-place in dark so they sprout). Plant in soil with Compost, a sorce of potassium and microryzal fungi. If for some reason you cannot source any compost/pottasium/microryzal fungi -plant anyhow potatoes are tough -there is still a good chance they will be Okay -depends on the condition of you soil. In my area I can water deeply once per week. Harvest when about half the leaves have fallen over as if to die. If you harvest sooner you may be compromising on size-because as long as those leaves can collect light they can store the energy in the tubers. Good luck - it is so much easier than it sounds- and all those diseases in the handbook are rare and if the plants are strong (well fed) they can manage just fine, potaoes are pretty tough root crop. In other words- you can grow potatoe.

- Celeste Archer

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