The team said it took genes from Campanula plants, which have blue flowers, and implanted them into a chrysanthemum plant. However, the color of the chrysanthemums that bloomed looked purple.

Japanese scientists have genetically engineered a chrysanthemum flower that is "true blue" — a color that has long eluded flower breeders and researchers. Blue has proved a challenge to produce ...

Noda came close in a 2013 study when he and his colleagues found that adding a gene from a naturally blue Canterbury bells flower (Campanula medium) into the DNA of chrysanthemums (Chrysanthemum ...

More information: Annika E. Kohler et al, Day-extension Blue Light Inhibits Flowering of Chrysanthemum When the Short Main Photoperiod Includes Far-red Light, Journal of the American Society for ...