You can definitely get a purple underside of your leaves with cannabis.
I've been trying to take pics of some seedlings that have that trait but my camera won't focus that close, piece of junk.
stinkyattic Reviewed by stinkyattic on . Does my plant even seem like a real MJ plant? Hi, this is my first grow (from bagseed). I have one plant about a week old. She has 3 sets of leaves counting the original ones but none of them are serrated and the undersides have a dark purple hue and the stem is somewhat reddish. I have it in American Seed Seed Starter Mix-Sphagnum peat,horticultual vermiculite,perlite,wetting agent and lime for PH balance, under a 150watt cfl(within 2 inches). I had a lot more seeds planted but only the one sprouted(due to me-I tried prying the shells Rating: 5