purple stems help!

bigdaddykush

bigdaddykush

Active Member
iv been having a common problem with my plants as to the stems going purple. i know some strains will no matter what get purple stems but iv grown over 12 different strains now and the main problem i have is my stems going purple wich stunts the growth of my plants cutting i take lose more leaves when the stems are purple too, in severe cases iv even had plants die!! i was thinking i have an excess amount of calcium in my soil wich is blocking out the sulphur??? but im not to sure if anyone could please give me there oppinion and help me solve this it would be highly appreciated.:)
 
rollinronan

rollinronan

Well-Known Member
red/purple stems and stunted growth.... sounds like stress?
check the obvious ones first, pH, over/under feeding and maby a less obvious one light stress. increasing/decreasing the lights irregularly
are you using timers?? even 10/15 mins either side of the time there meant to go on/off can have a dramatic affect... a friend of mine doesnt use timers because he doses't trust them for some reason and often lets it run over or under time....the stems are red...he doesn't see it because he thinks red stems are normal but he refuses to listen...sorry just a short rant
 
Alex Kelly

Alex Kelly

Active Member
"If you have ruled out the possibilities of genetics and the seedlings adjustments to life, you should begin looking for a nutrient deficiency. Purple stems are commonly caused by a Phosphorous (P) or Magnesium deficiency, if there is a P deficiency you may also notice symptoms such as brittle leaves or greyish spots."

My bet is a Phosphorous deficiency. Good luck.
 
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