Ok so i just checked up on a bagseed plant i have and it looks very healthy it is 2 months old and i noticed it has 1 purple branch. i have seen a few like this, anybody know what it is?
Genetics most likely or the start of a magnesium deficiency but long as nothing appears to be wrong I would say genetics.
also check the temps in your room they might be low but i doubt it unless your in northern canada or have extremely high air conditioning.