Growing Yacon, also Sunroot

Smallanthus sonchifolius : Asteraceae / the daisy family

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

(Best months for growing Yacon in South Africa - Summer rainfall 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

03 Jan 24, Aaron Mwikisa (South Africa - Humid sub-tropical climate)
Does it mean i can never get these rhizomes here in Zambia? Please if there is a way, am willing to buy some. Kindly help
14 Jan 24, (South Africa - Humid sub-tropical climate)
It says it is unsuitable to grow in your area. Try to buy on the internet if you like.
09 Apr 23, Nico Prinsloo (South Africa - Summer rainfall climate)
Where can I buy tubers/plants in South Africa
23 Apr 21, C DEFIGUEIREDO (South Africa - Summer rainfall climate)
Where can I buy yacon potatoes?
28 Apr 21, (South Africa - Summer rainfall climate)
Try the internet - seed selling companies.
10 Oct 20, Hayne Clark (South Africa - Summer rainfall climate)
Hi. Where in South Africa can I buy yacon to plant?
12 Oct 20, (South Africa - Summer rainfall climate)
Try internet seed selling companies.
10 Apr 20, Nick (South Africa - Humid sub-tropical climate)
Hi. Did any one get some yacon. I am also interested in some. Thanks nick. Or any other exotic plants available.
29 Oct 19, Sandra Berning (South Africa - Summer rainfall climate)
Where can I buy Yacon tubers to plant
30 Oct 19, Les (USA - Zone 6b climate)
I found Yacon tubors on ebay. I get a lot of seeds from sources online.
Showing 1 - 10 of 34 comments

My Yarcons have yet to flower ? when should they flower

- Elaine Brown

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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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