Are ornamental sweet potatoes edible?

FAQ
Question: 

Are ornamental sweet potatoes edible?

Answer: 

Ornamental sweet potatoes and sweet potatoes grown in the vegetable garden are different varieties of Ipomoea batatas.  The ornamental varieties are grown for their attractive foliage, while those in the vegetable garden are grown for their delicious roots.  The roots of ornamental sweet potatoes can be eaten.  However, the ornamental varieties were selected for their attractive foliage, not their culinary qualities.  The culinary qualities of the ornamental sweet potato roots may not measure up to their vegetable counterparts.  

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