i need to confess somefink! with the purple in one of my girls i had given her a little help in hand for the purple to come out in her lol! back in 2006 i thought to myself would use food colouring to dye a plant and her buds, well.. i did this year but i stoped after 4weeks of using the colouring bcoz i thought nothing was happening so then i went away for 2 weeks for work and came back to her turning purple and her buds were turning purple aswell but bcause i stoped i think thats why she has gone back to her natual colour (green) hehe! god knows whats the smoke is gonna be like after adding colouring ! i know other poeple have been talking about adding food dye with there plants, but dont want to bcause they could lose there babes.. well it works!