A blue rose is a flower of the genus Rosa (family Rosaceae) that presents blue-to-violet pigmentation instead of the more common red, white, or yellow. Blue roses are often portrayed in literature and art as symbols of love, prosperity, or immortality. 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 delphinidin.

What's the best answer to this question: is there such a thing as a blue rose?
yes