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Both potatoes and tomatoesBoth potatoes and tomatoes are in the nightshade family‚ Solanceae, but these are NOT tomatoes. Inside these "seed balls" are "true" seeds of the potato. Do not eat the seed balls or the seeds; they contain solanine, which is toxic to humans! Potato seed balls can occur during cool seasons. You can save and start the seeds indoors next season, transplanting after all danger of frost has passed. Note that they need a long growing season. You may get a harvest of a variety of tubers!  

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