Your comments and tips

06 Mar 17, John (Australia - temperate climate)

About a month after flowering you can carefully dig around the plant and harvest 'new' potatoes. These are delicious to eat but will not keep. Potatoes harvested after the tops have died off in late autumn are called 'old' potatoes. These will store well in a cool, dry place until early spring when rising temperatures will cause them to start and sprout. All the best.

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05 Mar 17, Nixiwaka (South Africa - Dry summer sub-tropical climate)

I stayed in Sweden for a few months and was surprised that they ate raw potato in the salads. So potatoes can be eaten raw.

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06 Mar 17, John (Australia - temperate climate)

Hello Nixiwaka, yours is a good question! Potatoes can be eaten raw but are safer cooked. Potatoes produce alkaloids which can be toxic. As with other members of the solanum family (tomatoes, capsicum, eggplant, nightshade, etc) most of this is in the stems and leaves. When green patches occur on potatoes it is an indicator that photosynthesis is occuring and these alkaloids are being produced in the tuber. That is why it is important to remove any green part of the potato before cooking and eating them. Raw potato is not easily digested in our gastrointestinal tract and may still be undigested when it gets to the large intestine causing colic cramps or diaorrhea as it ferments. I'll let you decide!

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02 Mar 17, Ashley (New Zealand - temperate climate)

Can you recommend a variety of PURPLE potato please?

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03 Mar 17, John (Australia - temperate climate)

I am in Australia and varieties of potato that are available vary across the Tasman. Check with Potatoes New Zealand at www.potatoesnz.co.nz . They list Purple Heart with purple skin and flesh and Purple Passion with purple skin and yellow flesh. Trust this helps.

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28 Feb 17, Rex Peni (New Zealand - temperate climate)

1 acre how much seed do I need what's the best variety how much fertilizer give it a go

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28 Feb 17, John (Australia - temperate climate)

What variety you grow depends on wht you want to use them for eg. mashing, baking, chips, all rounder, etc. You could contact www.potatoes.co.nz for the most suitable variety to grow. They would also be able to guide you on fertilisers or other soil amendments.

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28 Feb 17, John (Australia - temperate climate)

The quantity of seed you would need depends on a number of things - how wide the rows are, how good the soil is, how you are going to cultivate them, etc. As a guide you would need 5-800 kg/acre. I would suggest you contact your local Primary Industries or Agriculture Department for a more accurate quantity. They will know your area and often have charts allowing for different row widths and planting densities to calculate quantities. Happy spud growing!

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26 Feb 17, Lorna Carter (New Zealand - temperate climate)

End of February can I plant potatos now? Position not a lot of sun and no frosts

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26 Feb 17, John (Australia - temperate climate)

If you've not got anything else to plant give them a go. I have grown potatoes on the east side of the house which is shaded by flats next door first off then the house after midday. You're not likely to get the yield that you would with a spring-planted crop but any potato is better than no potato! Trust this helps.

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