why is my og kush turning purple??

I got 5 og kush plant that are at day 54 true flower, the trics, are half clear half cloudy ,no amber trics yet . I'm got about 28 days left, but the problem is my girls leavs are turning purple , not the stocks just all the leaves.is this normal? I know they yellow toward the end but is this purple normal? This is my first grow so this is my first time seeing the plant turn purple....it's not a purple strain..? It's og kush....
in fox farm soil, 400 watt hp,floranova bloom
here's a few pics the buds are super frosty and smell amazing!!!!!

CaliBudMan said:

I got 5 og kush plant that are at day 54 true flower, the trics, are half clear half cloudy ,no amber trics yet . I'm got about 28 days left, but the problem is my girls leavs are turning purple , not the stocks just all the leaves.is this normal? I know they yellow toward the end but is this purple normal? This is my first grow so this is my first time seeing the plant turn purple....it's not a purple strain..? It's og kush....
in fox farm soil, 400 watt hp,floranova bloom
here's a few pics the buds are super frosty and smell amazing!!!!!
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Cold temps or genetics

deadgro said:

Cold temps or genetics

Click to expand...

My temps are good it never gets cold in the room ,my temps are 70 f at night ..day temp 79 -80 f

could it be a P or K def? my new growth was doing that a few plants ago and i added molasses with my nutes ant it cleared up pretty fast

Its a goner

most people wouldn't complain lol.

this late in the grow you're fine. my bubba kush did the same towards the end and the quality wasn't hurt at all. good work!

Genetics. Look up chlorophyl in cannabis and you shouls find some of the info your seeking.