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

07 Jul 19, david lilliman (Australia - arid climate)
Hi , when do I know when to harvest my potatoes.
08 Jul 19, (Australia - arid climate)
It does say 15-20 weeks to grow and it does say plant Aug to Dec. Usually the plant tops starts dying off.
05 Jul 19, Val (Australia - temperate climate)
I didnt plant potatoes but they shot up from last year's crop. They started in autumn but the frost has now killed them. Why did they shoot at such a strange time and will they reshoot - or should I just harvest the new potatoes that they have produced before the frost killed them? I'm in South Gippsland Vic and we get pretty cold nights this time of year.
08 Jul 19, (Australia - temperate climate)
Harvest them. Crop time is 15-20 weeks from germination/shooting - consider this when planting and frosts.
21 Jun 19, Cheryl Burke (Australia - temperate climate)
I live in Clarence Town NSW. TEMPERATE climate but we do get frosts. I have just bought some seed potatoes. Should I plant them now or wait until August? If I wait, do Ineed to put them in the sun to encourage them to shoot?
24 Jun 19, (Australia - sub-tropical climate)
Put them in your pantry until late August and then plant.
18 Jun 19, Nox (South Africa - Semi-arid climate)
How do I make my potatoes carry more. I intend planting in September
10 Jun 19, Ol' Dazza (Australia - cool/mountain climate)
where can i buy some spud seeds?
13 Jun 19, Jello (Australia - sub-tropical climate)
Most decent nursery's will stock seed potatoes. Failing that, you can buy them online.
12 Jun 19, (Australia - temperate climate)
A produce agency (Farming) - Bunnings, Nursery.
Showing 231 - 240 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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