Growing Yam/Oca, also Oka

Oxalis tuberosa : Oxalidaceae / the wood sorrel family

Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
										P

(Best months for growing Yam/Oca in New Zealand - cool/mountain regions)

P = Plant tubers

Plant tubers about 5cm (1.5") deep covered with soil. Best planted at soil temperatures between 17°C and 35°C. (Show °F/in)
Space plants: 30 - 45 cm apart
Harvest in 15-20 weeks. Leave in the ground until foliage has completely died down so tubers reach maximum size.
Compatible with (can grow beside): Best in separate bed

Yams needs a long growing time to produce the tubers.

Protect from early Autumn (Fall) frosts to give time for tubers to fully develop.

Planting needs are similar to potatoes. Yams can handle more shade than potatoes. Earthing up will help increase production.

The leaves look rather like clover. Dig up after the plant dies down and leave outside for a few days to dry.

Culinary hints - cooking and eating Yam/Oca

Scrub and boil or roast with other vegetables.

Your comments and tips

29 Jul 22, Allykat (New Zealand - temperate climate): I brought yams at mitre 10. The packet says planr July/August but all online info says plant in Spring. I live inland Tasman area if that helps.
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08 Aug 22, Richard Grevers (New Zealand - cool/mountain climate): I'd go with the online info. We plant October/November, harvesting May/June (better after the first frost). They can take their time to really take off - ours had minimal foliage until March.
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14 Jul 22, Deb (New Zealand - temperate climate): I tried to grow yams last year without success but leaves shot up this year. I noticed some yams have grown but they have some green skin as they were on the surface or partially exposed. Are green yams toxic like green potatoes?
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05 Jan 20, Paul Watson (New Zealand - temperate climate): it is now Jan. 2020 in nz. is it too late to plant yams ?
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10 Jan 20, anonymous (New Zealand - temperate climate): You could try but if it doesn't work out, it is too late.
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27 Oct 19, Erica Blackwood (New Zealand - sub-tropical climate): Hi there, I have my yams in a bath tub, is there anything else I can plant in there with them?
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29 Oct 19, Anon (New Zealand - sub-tropical climate): You might be able to, but I'M a big believer that each crop has it's own space to grow. If you want to produce great yams why would you plant something else next to them to grab some of the fert, water etc. Each crop requires a minimum spacing between plants and between rows to produce a good. crop. Go and buy another bath tub, dig some ground up etc.
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06 Aug 19, Twyla Mac (New Zealand - sub-tropical climate): Hi, How do I best store yams before planting?
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14 Aug 19, (New Zealand - sub-tropical climate): Google - storing yams before planting.
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19 Jul 19, Claire (New Zealand - cool/mountain climate): Hi, Do we wait for the yams to start to ‘seed’ before planting them like potatoes? Thanks.
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GardenGrow

Keep your garden growing - see what to plant right now

Growing Yam/Oca, also Oka

Oxalis tuberosa : Oxalidaceae / the wood sorrel family

Culinary hints - cooking and eating Yam/Oca

Your comments and tips

Ask a question or post a comment or advice about Yam/Oca

GardenGrow

Keep your garden growing - see what to plant right now

Growing Yam/Oca, also Oka

Oxalis tuberosa : Oxalidaceae / the wood sorrel family

Culinary hints - cooking and eating Yam/Oca

Your comments and tips

Ask a question or post a comment or advice about Yam/Oca

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