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Old August 24, 2017   #18
NathanP
Tomatovillian™
 
Join Date: May 2013
Location: Rhode Island
Posts: 163
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You will get the best yield if you let the plants grow as long as possible. I often have many TPS plants that grow until past the first frost, some even until the first hard frost. If the stems are still green and growing, then tubers are still growing.
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