Buddy of mine told me that if I ever want more dense and purple weed to just give it cold water overnight
Definitely no way since my other plant is straight green no purple and i give them the same stuff Sent from my iPhone using Grasscity Forum
Sounds logical. I definitely know that when the weather turns colder in flower that certain strains turn purple. This is last season.
I started adding to teaspoons of epsom salt to my water but i didn't see a difference Sent from my iPhone using Grasscity Forum
How much sun are you getting? Here in Hawaii sativa stems and branches tend to turn red / purple when in heavy UV sun.
Purple stems and petioles do not have anything to do with cal-mag issues and are not a symptom of calcium or magnesium deficiencies. Cal-mag deficiencies start at the older lower leaves and cause brown spots and leaf chlorosis; not purpling stems. Your plants are fine, leave them alone. Stop adding Epsom salts and cal/mag or you will cause a lockout of other necessary elements needed for good growth from a mg toxicity from the excess cal/mag or Epsom salts. PW