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 Canada - Zone 4b Temperate Warm Summer 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

05 Mar 23, Phyllis Wright (Canada - Zone 8a Mild Temperate climate)
If I plant my potatoes now, do I keep them in my unheated garage which gets a bit of light or put them outside where we are still getting below 0 temperatures?
06 Mar 23, Celeste Archer (Canada - Zone 5a Temperate Warm Summer climate)
Potatoes can go in the ground now -- the cold temperatures won't do anything to them. In fall when I harvest my potatoes I tend to miss a few (those little tiny ones) -- and they are in the garden all winter (sometimes temps drop as low as -10c) and they still grow. Generally speaking, potatoes can be planted as soon as the ground can be worked. Don't forget to add lots of potassium (also called potash) to the soil.... potatoes LOVE potassium.
24 Feb 23, Richard (USA - Zone 7a climate)
I'm planting potatoes in root bags. When should I plant (indoor) and when can they be left outside?
26 Dec 22, nelg strebor (USA - Zone 5b climate)
I made sectional container and added 7" sections as growth poked through. Got to about 5' tall . when I unveiled it in latter fall there were very few potatoes. A lot of care for no result, any idea what happened?
09 Feb 23, Celeste Archer (Canada - Zone 5a Temperate Warm Summer climate)
I forgot to mention -- not all potatoes are suitable for towering -- it is very possible they used all their energy going up -- and did not have enough time left over for tuber formation -- which to me means -- if your going to tower that tall -- once you have the potatoes at full height your still going to need at LEAST a couple of months for the plants to set potatoes. One potato site lists these potatoes as being suitable for towering (they are not the only varieties, but they are the varieties they sell that are suitable for towering -- it has something to do with setting potatoes throughout the season -- kind of like indeterminate tomatoes) -- AmaRosa, Bellanita, French Fingerling, Pink Fir Apple, and Rode Eesteling (my personal favourite). I have only ever towered successfully to about 3.5 feet -- and the containers had 3" holes all around and the potato plants sent leaves out the holes on the sides of the container.
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.
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.
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
28 Nov 22, Louise (Australia - temperate climate)
Is it too now too late to plant potatoes on a bag in southern highlands? Cant seem to find seed potatoes will organic do? Thanks
03 Dec 22, (Australia - sub-tropical climate)
Check calander at the top of the page
Showing 11 - 20 of 791 comments

Hi, can you advise on a first early potato to plant. I can only seem to find mid or late varieties when I goggle. Thanks. I am moving to NSW Bega valley area in June.

- Tania Santamaria

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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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