Can anyone tell me if this is a strain?

Noticed the leaves turning black after a few week. Is this a disease?

It dont look bad maybe genetics

Could be nute burn.

The black part is senescence, think of Fall colors on tree leaves

It maybe used to be easier to determine a strain by that color, but nowadays shit, that could very well be Green Cookies lol

A friend gave me a clone of Black Mamba several years ago..
It was way darker than yours, completely black.. Wish I still had it..

Disease is called ripening; cure is harvesting

Looks fine and should be ready for harvest in a couple weeks.

looks fine to me, strain genetics i guess

Saying that the flower itself also has purp it's likely the genetics. Although I would have to say the leaf tips also yellowing could be a nutrient thing. Have you started flushing it yet? Looks like your close to finishing. Either way they'll probably stay like that. Overall plant looks great though. I wouldn't worry about it to much, just keep pushin, almost there.

cosmogrows said:

Have you started flushing it yet?

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Dont ask him that!
Flushing is pointless unless you have a lockout/salt issue going on.. flushing at harvest does NOTHING for a plant, doesnt "rid the plant of nutrients" or make "smoother smoke" its all bro science....

strong dark color is genetics mixed with high nitrogen feed. yellow is nute burn if it started at the top or nute deficency if it started at the bottom

leatherbackturtle420 said:

Dont ask him that!
Flushing is pointless unless you have a lockout/salt issue going on.. flushing at harvest does NOTHING for a plant, doesnt "rid the plant of nutrients" or make "smoother smoke" its all bro science....

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Well if your aims to fade your plants then its not entirely pointless if you can get soil temps below 15 c your locking some nutes out just like what happens in nature/autumn so you will encourage the fade effect might not flush anything out but it can serve a purpose still.

Many plants purple naturally. Plants like cooler end of cycle temps that simulate Fall.

Blurple lighting by chance?

Are you growing in coco? Just qurious

conor c said:

Well if your aims to fade your plants then its not entirely pointless if you can get soil temps below 15 c your locking some nutes out just like what happens in nature/autumn so you will encourage the fade effect might not flush anything out but it can serve a purpose still.

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I dont flush. Still get a fade too.
I lower night time temps, thats it.

I still stand by flushing does nothing unless you have ph/salt issues.

Topshelfruns said:

Are you growing in coco? Just qurious

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Yes coco

Herb & Suds said:

Blurple lighting by chance?

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Mars hydro led