Growing Jerusalem Artichokes, also Sunchoke

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

(Best months for growing Jerusalem Artichokes in New Zealand - cool/mountain regions)

P = Plant tubers

  • Easy to grow. Plant tubers about 5cm (1.5") deep.. Best planted at soil temperatures between 46°F and 59°F. (Show °C/cm)
  • Space plants: 12 - 18 inches apart
  • Harvest in 15-20 weeks.
  • Compatible with (can grow beside): Tomatoes, cucumbers
  • Jerusalem Artichoke/Sunchoke
  • Artichoke harvest

These are the edible root of a sunflower. Plant the tubers deep enough to cover with soil. They are quite drought-tolerant, but keep well-watered to grow larger tubers. They grow through the summer to 1.5m-tall sunflowers with a smallish flower. Dig up the tubers when the flowers die down in autumn.

Get a couple of tubers from the supermarket or fruit shop. Two years after planting you will probably have enough to give away. Perennial, if you don't manage to harvest all the tubers they will regrow year after year.

Culinary hints - cooking and eating Jerusalem Artichokes

Scrape clean or peel (add a tsp of lemon or vinegar to the water to stop the tubers browning). Steam, boil, or use in artichoke soup (make with artichokes and some stock). Caution - because they contain 'resistent starch' Jerusalem Artichokes are a great promoter of flatulence in some individuals.

Your comments and tips

25 Aug 21, Laura (Canada - Zone 3b Temperate Warm Summer climate)
Hi All, Sunchokes or Jerusalem artichokes grow great in Edmonton Alberta. I grow them for the flowers in my flower beds at the back. They are a wonderful perennial veggie and in the colder zones, we are limited on or perennial edible plants.
26 Jul 21, Leah Peterson (USA - Zone 10b climate)
Will Sunchokes die in extreme heat? Even with irrigation?
06 Aug 21, Anon (Australia - tropical climate)
By the guide here in Tropical Australia (hottest weather) you plant in Autumn and grow into/in winter. Summer might be too hot.
19 Jun 21, Colleen (Australia - sub-tropical climate)
There's a yellow flowering bush that looks like Jerusalem Artichoke that grows wild around northern rivers- Uki NSW Australia that seems similar but flower looks a bit bigger & grows quite tall & I think the leaves are wider with a different shape, not ovste like the Sunchoke. Does anyone know if these plants that can run rampant are from the same family as the Jerusalem Artichoke?
10 Oct 20, liz (New Zealand - temperate climate)
HI there. Can I still plant tubers in the garden in middle of spring?
12 Oct 20, Anonymous (New Zealand - temperate climate)
Go to the top of the J A page.
15 Sep 20, Skip Still (USA - Zone 7b climate)
When and how much sun for Jerusalem artichoke bulb? When to plant. Other recommendations (Gardenate : Check here www.gardenate.com/plant/Jerusalem Artichokes?zone=114 )
25 Aug 20, Judy Morris (South Africa - Dry summer sub-tropical climate)
When do you plant and harvest Jerusalem artichokes in the winter rainfall areas of South Africa?
26 Aug 20, Anon (South Africa - Semi-arid climate)
Go to the blue tab (climate zone) at the top of the page and work out your climate zone. Then go to J A and the info will be there.
02 Sep 20, judy mortis (South Africa - Dry summer sub-tropical climate)
Great. Thanks so much
Showing 1 - 10 of 250 comments

There's a yellow flowering bush that looks like Jerusalem Artichoke that grows wild around northern rivers- Uki NSW Australia that seems similar but flower looks a bit bigger & grows quite tall & I think the leaves are wider with a different shape, not ovste like the Sunchoke. Does anyone know if these plants that can run rampant are from the same family as the Jerusalem Artichoke?

- Colleen

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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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