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 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

17 Jul 24, Clifford Slater (USA - Zone 8a climate)
What potatoes can you grow in zone 8a in july/Aug.
20 Jul 24, Janene (Australia - sub-tropical climate)
I’ve seen these potato varieties recommended online for zone 8 Irish Cobbler Red Pontiac Yukon Gold Caribe Cranberry Red Norchip Kennebec
14 Jun 24, Maseven makhunga (South Africa - Summer rainfall climate)
I want advice because it my first time to plant the potatoes
17 Jun 24, (South Africa - Summer rainfall climate)
Go summer rainfall and read all about what is required. Also google a lot about growing in your climate zone.
06 May 24, Etta (USA - Zone 8b climate)
Best potatoes for zone 8b And when should they be planted. Ate buying potatoes online an ok idea?
09 Jun 24, dan (USA - Zone 10a climate)
Etta, Peaceful Valley in Central Calif. is a good place. Although, there may be a place closer to you. Homestead and Chill has articles and other potato resources and advice; they're good people and they have a cat named Badger. [dry humor emoji] This website has the months suggested on 'when' to plant. Dan
21 Mar 24, Pete (Australia - temperate climate)
Its late March and I am on the NSW Central Coast. My seed potatoes from last year have well and truly sprouted. I have planted a dozen or so, and realising that it is very early, I am curious to see what sort of yeild I will get. Anyone have any advice, or experience with planting spuds so early? Cheers Pete.
29 Mar 24, Celeste Archer (Canada - Zone 7b Mild Temperate climate)
When I harvest potatoes, if I don't get all the potatoes up properly -- then potatoes will grow the following year -- and we get temperatures down to about -10c overnight in the winter here -- and lots of rain in fall..... I actually find it difficult to rid an area of potatoes (in case I want to grow something else there) --- so to me, planting a bit early should not be an issue at all.
25 Mar 24, (Australia - sub-tropical climate)
They should produce a good crop if looked after properly. All seasons vary to some degrees -late maybe early.
04 Mar 24, Carol Erasmus (South Africa - Semi-arid climate)
Should potatoes be kept in shade for growing Thanks I live in Capetown Thanks
Showing 11 - 20 of 830 comments

I heard that the potato will stop sending nutrients to the tubers if the stalks are bent. One of the most successful potato harvests I have ever seen was a large container grown project where he used several layers (think of a layer cake) of horizontal plastic fencing and t-posts at each corner to hold the horizontal fencing to keep the stalks from bending at all and support them as they grew. They were able to get an absolutely massive yield with that method although he was sick all summer and didn't care for them or water them at all. I am not sure that the container growing was as pivotal in the results as just keeping the stalks from bending over. I have container grown before and will try it again this spring as well as ground growing using his methods to keep the stalks upright. I think another often overlooked issue is either too much or too little phosphorus and potash in 10-10-10 fertilizer. I think 'balanced' fertilizers can present real problems for root crops since they don't need or want balanced inputs. You will always have too much of something and too little of the other. Also there is a time delay on phosphorus while it stays in the upper part of the soil, so you can apply phosphorus to increase tuber formation, but it takes 3 months to disperse into the soil, while nitrogen sinks like a stone through soil an becomes almost immediately bio-unavailable (or runs off into the environment via water). So if you are using 10-10-10 you are going to end up poisoning your plants in order to get one or another nutrients available in the correct quantity. Plus factor in the time delay to bioavailability. I think it is better to thoroughly prepare soil before you put your garden to bed in the winter than prepare it in the spring (actually I have revived some fruit trees that were very old and no longer producing by fall fertilizing; I got almost $700 worth of organic pears and even more than this in apples last year through fall fertilizing). I also heard (and studied it last year in my own garden) that potatoes grow between the seed potato and the surface. If you bury them deep you will increase yields as there is more space for them to grow above the seed potato. But if you plant them shallow, they have a very narrow area to make potatoes in, significantly reducing production. This means in container gardening you need to put them at the very bottom of a 1'-6" (0.45 meters) tall container to get a full yield. I tried this method last year and doubled my production. I was putting them very close to the surface before last year. Also, potatoes need cool roots and won't produce anything at all if their roots are too hot in the container during the summer. Afternoon/evening shade is a must in Southern US zones or other hot environments. Or you could insulate or shade the container.

- Christian

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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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