There are some types of blue roses that can be found in nature, but the majority of blue roses are artificial. The most common form of artificial blue roses is through dyeing a white rose with food coloring or gel dyes. There is another method in which the petals of a white rose are painted with two coats and then dipped into ice-cold water – this causes the white petals to turn into a deep bluish purple color with hints of royal purple undertones. This process was first created by Dutch flower bulb grower and photographer Dennis Brinkers in 2006.
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