not that this is your problem (but it may be) and purple stems can be strain related as others have noted above, but they can also be an indicator of a nitrogen deficiency. worth checking into anyway. i have noticed purple stems in white widow when a nitrogen difeciency was out of the realm of possibility...good luck.
guerrilla farmer Reviewed by guerrilla farmer on . Purple branche's(Pic's Inclosed) Just one branch is turing purple but tits doing great though.....Could it be the strain or what.. Rating: 5