Growing Yacon, also Sunroot

Smallanthus sonchifolius : Asteraceae / the daisy family

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

(Best months for growing Yacon in New Zealand - cool/mountain 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 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

Your comments and tips

19 Nov 19, Angela (New Zealand - cool/mountain climate)
Hi there Im keen to grow some Yacon where would I be able to buy some tubers
25 Nov 19, Anon (New Zealand - sub-tropical climate)
Check on the internet.
14 Sep 19, Glenys (New Zealand - temperate climate)
I live in Katikati, BOP. Anyone know where I can get yakon plants? Thanks
16 Sep 19, Anon (New Zealand - sub-tropical climate)
Google it.
17 Jun 19, Liz Goldsworthy (New Zealand - temperate climate)
Hi, does anyone know where i can buy Yakon tubers from?
03 Aug 19, Merril Bourne (New Zealand - temperate climate)
I live in Auckland & have recently harvested some Yacon & have a few "crowns" / "bulblets" to share.
20 Sep 19, susie barr (New Zealand - cool/mountain climate)
How can I get yakon bulbs from you in Auckland as I also live in Auckland Eastern Suberbs ?
20 Jun 19, (New Zealand - sub-tropical climate)
Try Yacon New Zealand on Facebook.
09 Jul 19, Jill Carr (New Zealand - temperate climate)
Have just dug 2 large bucket fulls larger than usual one @ 900gr & other large, easily peeled in an hour easier than apples, have thousands of "bulblets" to give away.
20 Oct 19, Carine (New Zealand - sub-tropical climate)
Hi Jill Would also be interested in some yacon seed/crowns whatever you may still have available, please? Many thanks.
Showing 31 - 40 of 55 comments

Don't fridge yacon tuber. Only the rhizomes, if you need to fridge any of it. Cool cupboard or hung in a cotton bag in the garage in a dark spot works well. These will last many months. Most yacon people watch for when the outside starts to grow some surface mould and then consume the last ones quickly. The mould just cuts off, hasn't entered the tuber. Yacon will look AWFUL and squishy and gross in a matter of weeks and that's when they are best consumed. So age them for a few weeks at least. I'd say 5 months is a minimum to be able to store them and last year I got mine to 8 months before I saw any issues. I'm in a cool and dry climate. The only overdose you'll achieve on yacon is a lot of insoluble fibre that many westerners are not used to and your belly bugs will love and you and others around you may not appreciate. It has no ill effect though and is healthy. If you eat predominantly a vegan or veggo diet than it may not have this effect for you. (Gardenate : More information here https://www.permaculture.co.uk/How-to-grow-harvest-eat-yacon )

- Jose

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