Mine have had the same purple streaks all through veg- I tried to bump up the phosphorous and now the leaves are dark green around the veins and light green on the edge with a ton of leaf curl. Moral of the story: check your ph all around before supplementing
kingjustin Reviewed by kingjustin on . Purple streaks on stem ??? i have noticed purple streaks on my stem only near nodes and towards the top of the plant and branchs, im useing MG multi purpose compost with perlite and my plant is 5 weeks old and is a Cheese Bomb strain, what are these streaks?? Rating: 5