Growing Potato

Solanum tuberosum : Solanaceae / the nightshade family

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

(Best months for growing Potato in South Africa - Summer rainfall regions)

  • P = Plant seed potatoes
  • Plant tuber. Best planted at soil temperatures between 10°C and 30°C. (Show °F/in)
  • Space plants: 30 - 40 cm 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

23 Sep 17, Dale (South Africa - Semi-arid climate)
Poisons? In a garden? What happens when the neighborhood cats & owls eat the mice or rats?
22 May 17, Mdumiseni Patrick Khawula (South Africa - Semi-arid climate)
can i p lough potatoes in June ?
22 May 17, John (Australia - temperate climate)
If you mean 'plough or dig potatoes in June' you definitely can. If you mean 'plough the soil and plant potatoes in June' it would depend on whether you get frosts in your area. If you do it would be better to wait until the weather is warmer as frosts will kill the new potatoes.
15 May 17, Harare (South Africa - Semi-arid climate)
I'm in eastern cape (engcobo) how much watering does potatoes need for a favourable harvest,and what time must I plant?
15 May 17, John (Australia - temperate climate)
To produce good potatoes the plants need a consistent supply of water. In dry soils the potatoes will still form but will be small. Mulch can be used to save water. If the plants are wet then dry then wet again you will get irregular growth and knobbly potatoes with likely hollows inside them.
11 Apr 17, (South Africa - Dry summer sub-tropical climate)
where can I get potato seeds to plant in cape town Hout bay what ratio of organic compost to top soil must I use and must I add riversand
11 Apr 17, John (Australia - sub-tropical climate)
Seed potatoes are normally available from nurseries, etc. in the winter. livingseeds.co.za (online) also list them and there will be other suppliers as well. The ratio of soil to compost is not an easy question to answer but adding well rotted manure or compost can only help. Fresh manure will cause misshapen tubers. Ensure the soil is loose and friable down to about 300 mm (12") and then plant the potato seed pieces about 200 mm (8") deep. Potatoes form off the stem above the root mass and this space will give them room to develop. River sand would be good if the soil is very heavy and hard.
28 Mar 17, Nomzamo Ntshisela (South Africa - Semi-arid climate)
I live in the Eastern Cape (former Transkei), can I plant and grow potatoes in winter? I have heard there are potatoes that are winter resistant. Can you advise on that?
30 Mar 17, John (Australia - temperate climate)
You didn't mention whether you lived in the coastal region of Eastern Cape or over the ranges but I don't know of any variety that will handle any more than a light frost without damage. I have had potatoes come up throughout the year and the only ones that survived were under the eaves or a verandah. If frosts aren't a problem there is no reason why you can't plant them any time.
17 Mar 17, Likeleli (South Africa - Semi-arid climate)
what if i plant potatoes in greenhouse, can they do well in winter?
Showing 41 - 50 of 105 comments

I like the idea from the gardener in Australia. G'Day to you. I also have soil like you with clay and rock so digging the trench allows a quick easy replacement but drainage can be a problem with the rocky clay soil. Potatoes love water but too much and they will rot. Try choosing a location with a higher elevation if possible. Sometimes rain pooling can be avoided at higher locations by digging a small trench as a drain. Avoid areas that are already wet or are typically wet. At my place the trench filled with water and took more that a week to drain. I back filled the trench and chose another location.

- Ross

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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. Gardenate 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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