Almost everything I grow gets red/purple petioles, multiple breeders. Once in a while I get one thats all green, but everything from exotic seems to have this. I have read that it's nutrient related, but i don't really know. My cubes have the red striping on the stems like everything else. They are slow, I vegged mine for 4 months to get 2.5 ft tall bushes. Hardly any stretch in flower. They are a worked IBL, so they are supposed to be slow. My two ladies are damn near identical, and both smell like sour apple/pear.