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Growing Yacon, also Sunroot

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 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

11 May 18, Minsoo (New Zealand - temperate climate)
Hi I live in tauranga. Where can I get the seed. I would like to plant in my garden. Thanks
21 May 18, Dawn (New Zealand - temperate climate)
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!!!
21 Apr 18, Jim (Australia - cool/mountain climate)
Has anyone got any spare Yacon in Toowoomba? Cheers, JIm.
23 Apr 18, Mike (Australia - sub-tropical climate)
If no success try Boondie Seeds (lives in Armidale NSW) - they have them but sold out at the moment - contact her to find out when she might have them back in stock. Sometimes she has stock when the website says sold out.
06 Apr 18, ron (Australia - temperate climate)
I put a post about Yacon on 30 Aug 17.We planted tubers in May ,ended up with 9 plants all put into pots . They are now Flowering . We can see some tubers now.Plants still green some have up to 5 stems & over 2 metres tall Thank You to Mountain Herbs @Katoomba. Great buy for $16.10 Would highly recommend them.!!Ron
23 Mar 18, Graeme (Australia - temperate climate)
We had a great crop (considering 1st year in the ground.) This 2nd year the plants have flourished but haven't flowered. The plants are just beginning to feel the cooler monthes (we water but very dry). We have had no flowers this year. Should we be concerned? Thanks for any tips!
22 Mar 18, Riyaad (South Africa - Summer rainfall climate)
Hi guys. Would anyone be able to help me with Yacon rhizomes or tubers for planting. Would really appreciate it. Thanks
04 Mar 18, Heather truster (Canada - Zone 3b Temperate Warm Summer climate)
Where can I purchase in the Barrie area
04 Dec 17, Jill Weiss (Canada - Zone 7b Mild Temperate climate)
Does anyone know where to buy Yacon tubers in Canada? I would like to try growing them Thanks Jill
10 Feb 18, Gerry (Canada - zone 4a Temperate Warm Summer climate)
Me too! I'm in the Edmonton area and also looking for the seeds or rhizomes. Let me know if you find a supplier.
Showing 1 - 10 of 198 comments

In July I planted some tubers I got from my relative in the Blue Mountains ...cold up there. Came back to Brisbane and left them lying around for a few days before I got round to finding a big enough garden bag/soil to plant in. Put them NOT too deep in organic compacted soil and in a week or two they shot up. Now in September they are growing very quickly and looking great. The tubers had gone a bit 'soft' before I planted them but all seems to have gone far. Not sure when they may reach flower and die back. Excited to see what happens.

- Linda B

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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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