Growing Yacon, also Sunroot

Smallanthus sonchifolius : Asteraceae / the daisy family

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

Not recommended for growing in USA - Zone 5a regions

  • 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
31 Oct 24, John (Australia - sub-tropical climate)
Yacon grows from its tuber like a sweet potato. You can buy Yacon plants at Daley's nursery online, they are popular though so if you see them in stock you better grab them. I missed two years in a row, but I finally got some this year!
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.
26 Nov 23, Malcolm (Australia - temperate climate)
are we allowed to grow in South Australia
25 Nov 23, Eva (Australia - temperate climate)
I wonder where I could pay some Yacon plants please. I need for health reasons. Thankyou
30 Nov 23, (Australia - sub-tropical climate)
Go to google and type buy yacon plants.
15 Oct 23, Berry (USA - Zone 13b climate)
I am looking for a souce to order yacon rhizomes for planting..
01 Jul 23, Barney Clarke (Australia - sub-tropical climate)
Hi my name is Barney, I live just out of Perth WA . The temperature ranges between - 5 to 40 + and the soil is sandy. My question is can I grow Pineapple here ? I have a 90 litre pot, to grow them in thank you
Showing 1 - 10 of 216 comments

This is my second year of growing Yukon I was just wondering if anybody knows if I can leave them into the ground to store the fruit for a few months like a potato thank you

- kim

Please provide your email address if you are hoping for a reply


All comments are reviewed before displaying on the site, so your posting will not appear immediately

Gardenate App

Put Gardenate in your pocket. Get our app for iPhone, iPad or Android to add your own plants and record your plantings and harvests

Planting Reminders

Join 60,000+ gardeners who already use Gardenate and subscribe to the free Gardenate planting reminders email newsletter.


Home | Vegetables and herbs to plant | Climate zones | About Gardenate | Contact us | Privacy Policy

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.
We cannot help if you are overrun by giant slugs.