Plants turning purple in week 3

Discussion in 'Growing Marijuana Indoors' started by SativaBleu, Aug 3, 2019.

  1. anyone else experience this?
    A few of my girls are already darkening at 3 weeks. I flipped the light July 11 so I am guessing they are about 3 weeks into flowering now.

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  2. P deficiency or lock out. Or night time temps. One of the two.

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    • Agree Agree x 2
  3. Or you think maybe Genetics? That's my thought.

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  4. I agree, although in one or two of the pictures i see maybe little signs of N tox and or overwatering which im turn is blocking P uptake. I maybe see some Mg issue also.

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