dude, it could be a deficiency. i think i've heard its a lack of nitrogen that can turn shit purple.

WikiAnswers - What happens if your marijuana turns purple

check that out dude, cause you never know...it could be some purp shit, but if not then you've got a sick little plant
downhearted Reviewed by downhearted on . need help "IDing" a strain ok... im going to try to get some pics up in here soon, BUT... untill then i was hoping some one could help... i have 4 girls growing right now... 1 iknow is some dope chron... but the other 3... thats a different story... the plants themselves are only 7inches tall or so, and the leaves on them r very wide, and fan leaves damn near bigger than the plant itself... and it has purple running down the inner "veins" of the leaves... Rating: 5