How can i make a flower be blue?

if u have a white flower u can put it in a vase with water and some food coloring. If u want it to be two different colors then u cut the steam upwourds and get another vase one with blue food coloring and the other with a different food color or just plain water.

How can i make a flower be blue?
I know that for hydrangea, they sell an aluminum soil amendment that gives it blue blooms. I've never tried it on other flowers but it's worth a shot. Other than that I would try a dye or start out with a blue variety of flower so you don't need to change it.
Reply:If it;s a fresh-cut flower, put it in water and add a little blue ink to the water. If its in the ground, saturate the area around the roots with a blue dye solution
Reply:you put it into a glass with blue dye in it, and capillary action will bring the dye from the stem to the flower.
Reply:poop on it