is food color safe? it it pure natural blueberry concentrate so I don't think that it can harm anything being put into the soil any more than oj or koolade (other things I've hear peple claim effect plant flavors). I doubt if it's flavor or color will effect the buds at all. Other than proving that, I dont' really want to try any other kinds of adulteration experiments. Thanks though, I had seen the flower in the food color thing before.