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 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

29 May 22, Lynn (Canada - Zone 5a Temperate Warm Summer climate)
Where can I buy yacon root to grow if I live in Ontario Canada
02 May 22, June (Canada - Zone 3b Temperate Warm Summer climate)
Hi,where do I buy Yacon? I live Toronto,Canada. Thanks
07 Apr 22, Nouk (USA - Zone 5a climate)
Where do I find an yacon plant in my area
16 Apr 22, Celeste Archer (Canada - Zone 7b Mild Temperate climate) (Note from Gardenate : they have sold out for 2022)
07 Feb 22, Dylinda Matiga (Australia - tropical climate)
The title of this blog is 'growen yacon in tropical Australia I am in tropical Philippines I thought tropical is tropical I am confused. Soil temperature here is never 50 degrees FH, nor do we get Frost's My question is... How would l grow it in a Frost free tropical climate where the soil temperature rarely drops lower than 85 farenhite As we don't get frosts, will it die off or produce flowers and yacon all year, Can it even grow in a Frost free tropical climate. How can I treat it like an annual and a perrinial everywhere else I just bought one and ? Thanks to whoever can helpme
08 Feb 22, John Mauger (Australia - tropical climate)
If you refer to the growing notes for Yacon on this site you will find your answer. Yacon should grow in the Philippines The temperature guide can be read in Fahrenheit or Celsius. Just click on it for one or the other. All the best.
07 Feb 22, Mike (Australia - tropical climate)
Tropical climate describes certain weather conditions whether it is Australia, China or Asia. Look at the planting guide April to July. Then read the article - warm/hot climates it is perennial. read the notes here.
10 Jan 22, YEE HAN CHOY (Canada - Zone 3a Temperate Short Summer climate)
i had greenhouse just want to try grow it
13 Jan 22, Anonymous (Canada - Zone 3a Temperate Short Summer climate)
You don't have the climate to grow it.
19 Sep 21, (New Zealand - sub-tropical climate)
Did you manage to find some?
Showing 1 - 10 of 329 comments

Ask a question or post a comment or advice about Yacon

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 our 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.