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          

(Best months for growing Yacon in Australia - tropical 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 10°C and 25°C. (Show °F/in)
  • Space plants: 100 cm 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

Your comments and tips

16 Oct 17, Mike (Australia - sub-tropical climate)
Depending on where you live - I wouldn't leave them in the ground if a chance of rain/heavy rain - they would rot. We are having the wettest Oct on record where I live. Maybe store in a box with sand or just store them in a cool/dry place.
07 Oct 17, Dru Butler (Australia - temperate climate)
Green Harvest have Yacon and other great plants
28 Sep 17, Linda B (Australia - temperate climate)
Apologies for not checking my post...autocorrect put 'compacted' soil. I thought I typed 'composted' soil. I would imagine that compacting the soil would not be that great for a tuber! Sorry folks!
25 Sep 17, Linda B (Australia - temperate climate)
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 fine...so far. Not sure when they may reach flower and die back. Excited to see what happens.
14 Aug 17, Lyn (Australia - sub-tropical climate)
I have been looking for a supplier of the rhizomes for a few months & have just stumbled on your page. Can someone let me know where I can get them (I am on the Gold Coast) I will need to build up a bed as we have very sandy soil. Any assistance will be gratefully received.
26 Sep 17, Bob bell (Australia - temperate climate)
Hi Lyn I have a lot of Yacon plants ready to plant out (extras I dont need) we live in Cleveland would be happy to give You as many as you need....anybody else looking for some I have a few that I dont have space to plant out...Cheers,
07 Jun 23, Steve Dillon (Australia - temperate climate)
Hi there Bob. Do you still have Yacon growing? If so, we would love to get some. Hope to hear from you soon. Have an awesome day. Cheers, Steve Dillon..
05 Apr 20, Jeffrey Paul Hasenkam (Australia - tropical climate)
Hi Bob.. I live in Cleveland and would like to know where I can purchase some tubers and some yakon to eat. Thank you.
21 Apr 18, Keo (Australia - temperate climate)
G'day; Please tell me where can I get Yucon plants, I am in Sydney Much appreciated; Keo
05 Mar 18, colleen benson (Australia - temperate climate)
Hi Bob would be interested if you have any yarcon tubers left. also interested in when to dig up I bought one plant for my grandson he is 14 with type 1 diabeties to try to help with sugar heard it was beneficial on gardening guru show. We live at underwood in logan city. Thank you Colleen
Showing 71 - 80 of 214 comments

Hi Jim I am in Hobart and have some growing. I have happy to share some if you can let me know by email where you are.

- David Donald

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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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