Growing Yacon, also Sunroot

Smallanthus sonchifolius : Asteraceae / the daisy family

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 50°F and 77°F. (Show °C/cm)
  • Space plants: 39 inches 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 2 m/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

06 Sep 24, roberto richard (Australia - temperate climate)
where CAN I BUY YCON SEEDS PLEASE
15 Aug 24, Diane Davidson (New Zealand - temperate climate)
I'm fascinated by this Yacon plant - don't know if I'll be able to grow it as I only have a balcony garden at my apartment. I understand that they need quite a lot of space. But I'd like to try, if I can discover where zi could buy the roots for planting. Otherwise, perhaps there is somewhere that I could buy the fruits for eating. I'd like to experiment with different ways of cooking/eating them
08 Sep 24, Sharron (New Zealand - temperate climate)
What part of New Zealand are you living in? I have a yacon and might be able to give you a root
13 May 24, Stephen (Australia - temperate climate)
Would the region around Bingara NSW be suitable for Yacon production. It is a little dry, cool climate unimproved soils.
27 Mar 24, (Australia - temperate climate)
My yakons still have some leaves on them and new shoots growing already, it is the start of April in a temperate climate, Australia. When should I harvest them, do I have to let the plant die back, what happens to the new shoots. Regards Maureen
28 Feb 24, James (USA - Zone 7a climate)
Where to buy tuber/roots to plant??? Yacon plants.
07 Jan 24, Di (New Zealand - temperate climate)
I have yacon if you'd like some tubers. I live in Tauranga.
10 Jan 24, Evan (New Zealand - temperate climate)
I would love some Yakon tubers Di, I am in Tauranga also
09 Jan 24, Bruce (New Zealand - temperate climate)
I'd love some too. I'm local, can pick up
07 Jan 24, Jane Pearce (New Zealand - temperate climate)
I would love some yacon! I live in Christchurch. Obviously I would pay postage, but would you also charge for the plants? Thanks.
Showing 1 - 10 of 360 comments

hi, Where can I get the seed or plant in Christchurch , Newzealand ? How much is it ? Thanks.

- Ittai

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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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