as a gardener I know that there are different things you can do to change the color of certain flowers. You can put nails in water and let them rust and pour the water on hydrangeas and it will turn the blooms different colors. We used to pour dirty mop water on a huge hydrangea and at one point had pink, blue, purple and white blooms on one plant. I wouldn't suggest doing this to something you plan to put in your body though! I'll take my buds green thanks!!