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Old February 28, 2018   #8
Black Krim
Tomatovillian™
 
Join Date: Dec 2016
Location: New England
Posts: 661
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THis information came from the growing guide PDF file from Maine Potato Lady
https://www.mainepotatolady.com/pdf/...g-potatoes.pdf


Planting Your Potatoes
Seed potatoes are subject to decay when they are exposed to hot, dry
soil or cold, wet soil. The soil temperature should have reached a temperature
of about 50°F-70°F, or when the dandelions bloom.


In Maine the springs are long and cold. Inland much colder. On the coast cool and humid days and cold nights. As a teen I wore a wool sweater many evenings in the summer living on a coastal island.

Perhaps the cooler weather needed is why the top potato growing states are northern states.
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