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Growing Sweet Potato, also Kumara

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

Not recommended for growing in USA - Zone 5a regions

  • Plant shoots or cuttings (Slips). Best planted at soil temperatures between 17°C and 35°C. (Show °F/in)
  • Space plants: 40 - 60 cm apart
  • Harvest in 15-17 weeks.
  • Compatible with (can grow beside): Best in Separate bed

Your comments and tips

23 Mar 18, Mike (Australia - sub-tropical climate)
Cut off some runners/vine and plant them - better than tubers. About 18
10 Mar 18, Greg (Australia - sub-tropical climate)
I'm in Ipswich , SE QLD. I planted five purple sweet potato slips back at the beginning of August (2017). They have been in the ground seven months. They have grown well but have not flowered or died back at all, unlike the normal orange ones i grew the previous year. I've had a little bit of a dig around but have not found any tubers at all. Has anyone grown these before in my climate and should i be expecting to find tubers by now? Perhaps they went in at the wrong time of year? If i could upload a photo here, i would. Thanks for your help!
11 Mar 18, Mike (Australia - sub-tropical climate)
I planted the orange ones one summer and they produced heaps. The next year nearly nothing. I talked to a farmer a few months ago and they plant slips. That is they go onto an existing growing crop about 6-8 weeks old and they take slips/runners/vine
13 Mar 18, Mike (Australia - sub-tropical climate)
They cut this off from my post. You need a slip about 18
04 Mar 18, Sue Ussher (New Zealand - cool/mountain climate)
I live in Fairlie South Canterbury and want to know if I could grow Kumara here and what month should I be planting them
25 Feb 18, Chloe (New Zealand - sub-tropical climate)
I have two furiously shooting kumara that have been growing in the pantry (!) Whilst I was overseas. I'm located in a very sunny spot in Auckland, is there any point in attempting to grow them now? (End Feb)
27 Feb 18, Mike (Australia - sub-tropical climate)
Give it a go.
08 Mar 18, Mary (Australia - temperate climate)
Pop it in the ground, that way you will have slips for next Spring. However, if you get cold winters over there, pop it in a pot, so you can move it to the garage or shed during the cold days and nights.
24 Feb 18, Val Clark (Australia - temperate climate)
When is the best time to plant out the new growth from a tubar. I have a sweet potato that has sprung heaps of shoots. I'd like to put them into pots. Will they grow over winter in I keep them warm or am I wasting my time?
08 Mar 18, Mary (Australia - temperate climate)
I am in Adelaide -Temperate, and I leave mine in the ground over winter.
Showing 11 - 20 of 182 comments

Is it possible for Kumara to be grown in Christchurch, New Zealand.

- Joss Roberts

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