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Growing Yacon, also Sunroot

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

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

P = Plant tubers

  • Easy to grow. Plant sprouting root/tuber to a depth of about 4cm and mulch to cover. Best planted at soil temperatures between 10°C and 25°C. (Show °F/in)
  • Space plants: 100 cm apart
  • Harvest in approximately 25 weeks. You can collect a few at a time without digging out the whole plant..
  • Compatible with (can grow beside): Best in separate bed
  • Yacon flowering

Yacon is perennial in sub-tropical/tropical areas. Save some root pieces and treat as an annual in other areas.

Grows into a large plant ( about 2m/6ft) with flowers similar to sunflowers and Jerusalem artichokes.

The plants die down after frost but the roots are sweeter. To store, dig and dry out for a couple of days in the sun if possible. Store in a dry, cool, not freezing and dark place.

Any roots left in the ground will grow the following year except where there are frosts.

Culinary hints - cooking and eating Yacon

The large roots can be used raw in salads peel and chop. Sprinkle with lemon juice to prevent browning.
'In the Andes, they are grated and squeezed through a cloth to yield a sweet refreshing drink. The juice can also be boiled down to produce a syrup. In South America the juice is concentrated to form dark brown blocks of sugar called chancaca.' (Green Harvest)

Your comments and tips

22 Mar 20, Dean (New Zealand - temperate climate)
This is my first time growing also. I was wondering this also but yesterday notice a flower just starting. I would say just give them time.
11 Mar 20, joy (New Zealand - temperate climate)
hello Alice, thanks for your comment. I'd love to get in contact with you to get some tuber pieces in August - how do i do that? kind regards Joy
12 Mar 20, Liz at Gardenate (New Zealand - temperate climate)
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11 Mar 20, Anon (New Zealand - sub-tropical climate)
Try a seed selling internet company.
02 Mar 20, Carol (New Zealand - sub-tropical climate)
Hello - this is my first year of growin Yacon which I planted in October, although the 2 plants are quite tall they have not yet flowered. Does this mean that the aren't producng tubers yet , or will the flowers come later ? Look forward to hearing back. Regards Carol
02 Mar 20, Anon (New Zealand - sub-tropical climate)
Gently feel around in the soil to see if you have any tubes.
09 Jan 20, Greg Bundle (New Zealand - temperate climate)
Can you tell me where to purchase yacon tubers? In nz Thanks Greg
12 Jan 20, Alice Phillips (New Zealand - temperate climate)
You can usually get them on trademe but to get tubers this year you would need a plant that's already underway. I have some available most years if you contact me in August.
10 Jan 20, Anon (New Zealand - sub-tropical climate)
Try seed selling companies on the net.
19 Nov 19, Angela (New Zealand - cool/mountain climate)
Hi there Im keen to grow some Yacon where would I be able to buy some tubers
Showing 1 - 10 of 34 comments

Hi there. I will be harvesting my yacon in the next month or two and can send you some then for you to plant in spring...paying it forward as I was given 3 two seasons ago, planted 12 and gave away 16 last season, so I expect to have wayyyyy too much this harvest!!!

- Dawn

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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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