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Growing Okinawan Purple Sweet Potatoes

by Liz Baessler December 7, 2017

Growing Okinawan Purple Sweet Potatoes

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By Liz Baessler

When you think sweet potatoes, chances are you think of those orange fleshed things at Thanksgiving, maybe with marshmallows on top. While there’s nothing wrong with those, they’re far from the only sweet potatoes out there. Keep reading to broaden your sweet potato horizons.

History of Okinawan Purple Sweet Potato Plants

Okinawan sweet potato history is a funny one. Even though it gets its name from a prefecture in Japan where it’s extremely popular, it’s actually native to the Americas. It was picked up by European explorers sometime between 1492 and 1605 and carried to Asia. It especially took hold in Japan, and from there it travelled to Hawaii. To this day it’s an important staple in both places.

Okinawan sweet potatoes are also sometimes called Okinawan yams. This is due to a long history of confusion and conflicting opinions about what constitutes a yam or a sweet potato. We don’t need to get into that here – all you need to know is that both names deal with the same potato.

The potato in question has a pretty bland light brown skin, but the meat inside is a beautiful vivid purple sometimes streaked with white. The flavor is sweet and pleasant, and the texture is creamy. It’s very rich in vitamins and has been called a superfood. It maintains its purple color very well through the cooking process.

Growing Okinawan Purple Sweet Potatoes

Growing an Okinawan sweet potato vine is rewarding as long as you have the right climate. It can be grown like other sweet potatoes and needs a long, hot growing season. Plants tend to come as live cuttings that are transplanted directly into the ground.

Plant your cutting in a hill of rich soil. As it grows, add more soil to the hill – this will give the plant extra room to grow underground and protect it from weevils. You can usually harvest Okinawan sweet potatoes after 120 to 180 days.

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1 person already talking about this.
    Ella Wilson
    Answered on January 24, 2018Reply

    Hey, Liz! Thank you for sharing this post! I never heard of Okinawan Purple Sweet Potatoes so thanks for this information. I got curious so I will definitely try planting this very soon!

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