Some people believe blue lotus flower has health benefits, including reducing anxiety and improving sleep. But it has psychoactive properties, and research on its safety and efficacy is needed.

In the world of colour, the combination of blue, yellow and red creates a natural three-part harmony, and it is these colours that we associate with the autumn garden. While red, yellow and orange ...

And “people actively seek out plants with blue flowers to fill their gardens”. Plenty of flowers are bluish, but it’s rare to find true blue in nature, says Naonobu Noda, a plant researcher ...