Help please...phosphorus due to temp... I think

I’m about to weeks from harvest and most of my leaves have turned dark purple and it happened after my heat went down to around 60-65 at night. So I’m thinking phosphorus deficiency. What harm will this deficiency do to my plant? How can I correct or should I do anything at all?What are the symptoms if you have to much phosphorus?

hebrewdiver said:

I’m about to weeks from harvest and most of my leaves have turned dark purple and it happened after my heat went down to around 60-65 at night. So I’m thinking phosphorus deficiency. What harm will this deficiency do to my plant? How can I correct or should I do anything at all?What are the symptoms if you have to much phosphorus?

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What strain are we talking about? Those temperatures are good.

Colder night temps cause leaves to purple however 60-65 is nothing for lights out. I would even consider that good because you want it to be a little cooler at night. This purpling could be considered a desirable thing if it's only related to temperatures . I try to make that happen which is why I am growing purple kush in the colder months when I struggle with lights out temps.