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 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

26 Jul 18, Faye (New Zealand - cool/mountain climate)
Dig the whole plant up. Eat the large light brown tubers (look like dahlia tubers) . Where the stem meets the ground should be a different thickened part more reddish keep this it will get shoots in spring and is the bit to plant when danger of frosts is past.
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
10 Jul 18, Amanda (South Africa - Summer rainfall climate)
Hi Riyaad Was just wondering if you had managed to get Yacon tubers for planting. I am also looking for some and thought that asking you would be a good place to start. Thank you Amanda
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 151 - 160 of 360 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 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.