Blue Rose!

A blue rose is a flower of the genus  Rosa(family Risascaes) that presents blue-to-violet pigmentation instead of the more common red, white, or yellow. Blue roses are often used to symbolize mystery or attaining the impossible.However, because of genetic limitations, they do not exist in nature. In 2004, researchers used genetic modification to create roses that contain the blue pigment delfinifin.

So-called "blue roses" have been bred by conventional hybridization methods, but the results, such as "Blue Moon", are more accurately described as lilac in color.