HOW THEY GET THEIR AMAZING COLOUR

1 DNA is taken from the butterfly pea and Canterbury bell by soaking their petals and leaves in a chemical solution

2 The ‘true blue’ DNA is separated out and transferred into a common plant bug, called an agrobacterium, using an electric shock

3 The genetically modified bug delivers the foreign genes into the nucleus of the chrysanthemum cell

4 A year later, the seeds from this plant germinate and produce plants with blue flowers