Growing Potato

Solanum tuberosum : Solanaceae / the nightshade family

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

(Best months for growing Potato in New Zealand - cool/mountain 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

02 Oct 17, Mike (Australia - sub-tropical climate)
I have never tried this. As the plant grows just add more mulch/soil around the plant but don't completely cover all leaves. Leave the top leaves out.
28 Sep 17, violet (South Africa - Summer rainfall climate)
hi im in soshanguve north of pretoria,am strugling to.get tubers. can I produce my own from the potato then plant on my one hector in november?
15 Sep 17, Heather (New Zealand - temperate climate)
Hi. I have never grown potatoes, I would like to try is it time now central north island, Jersey Bennie seem to be popular early potatoes? Heathet
04 Sep 17, moses (South Africa - Summer rainfall climate)
where can I buy certified seed in pretoria
03 Sep 17, Nomzamo (South Africa - Summer rainfall climate)
is it ok to plant potatoes before the first rains around September? and how long will it take for them to ripen?
23 Aug 17, Paul Kelly (Australia - temperate climate)
The leaves on my potatoes seem to be shriveling and dying. Leaving crisp brown holes in the leaves and dead stems. Could it be a fungal disease or insect attack. If it is fungal disease what should I treat it with. Could it be viral?
25 Aug 17, Tim (Australia - temperate climate)
How old are your plants? The leaves and stems will die when its time to harvest.
13 Aug 17, Gill (Australia - temperate climate)
Our potatoes have grown very tall..how do you know when to harvest them? With many tjanks Gill
13 Aug 17, Mike (Australia - sub-tropical climate)
They have probably grown tall because of one or both of two things - too much nitrogen or if they had to compete for light -(tall nearby plants). I think the guide here say 12-16 weeks to harvest. The leaves will die off when it is time to harvest. My plants powered along (fed plenty of composting mulch - then they have just died - only about 12 weeks since shooting out of the ground. I pulled out one plant - a few big potatoes and a few smaller ones. Have left the others in until I need them to eat.
12 Aug 17, Paul (Australia - temperate climate)
Would this potato planting guide apply to sweet potato's as well?
Showing 331 - 340 of 830 comments

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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This planting guide is a general reference intended for home gardeners. We recommend that you take into account your local conditions in making planting decisions. GardenGrow is not a farming or commercial advisory service. For specific advice, please contact your local plant suppliers, gardening groups, or agricultural department. The information on this site is presented in good faith, but we take no responsibility as to the accuracy of the information provided.
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