True blue flowers have an almost otherworldly look – so vivid it’s easy to imagine they’ve been AI-generated. Blue is the rarest color in nature, and most “blue” flowers actually lean purple, so when ...

There's a reason the intensely blue orchid flowers you’ve seen in the floral departments of groceries, box stores and retail plant nurseries don’t look natural. Blue isn’t a natural color in these ...

At a dinner party, or in the schoolyard, the question of favourite colour frequently results in an answer of “blue”. Why is it that humans are so fond of blue? And why does it seem to be so rare in ...