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Old March 27, 2018   #7
Gardeneer
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Join Date: Feb 2015
Location: NC - zone 8a - heat zone 7
Posts: 4,909
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Purple stems/leaves are usual with tomato seedling
I think it has to do with cool temperatures and pkants inability to uptake certain elements. But once planted out an soil warms up they will recover. Some varietires like INGIGOs are genetically purplish. As i look into my seedlings, out of 23 varieties some are healthy green and some purplish, to somebextent
So i see a genetic influence there
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