Ai no rensei

Natural blue roses do not exist because roses lack a gene that will create a true blue colour in them. In history, blue roses were just white ones which were dyed blue. In 2004 a Japanese company named Suntory teamed up with an Australian company named Florigene in order to use genetic engineering to add blue pigment to white roses. Unfortunately the resulting roses look more like a deep lavender than a true shade of blue.