By looking at water lilies inside the magnificent Palm House, a unique global rainforest in London, David reveals how flowers first began their evolutionary journey some 140 million years ago.

...Plants. David Attenborough explores the secret life of plants at Kew, examining everything from a huge underground specimen to a snappy carnivorous variety. (2 of 3)

David Attenborough concludes his absorbing journey around London's Kew Gardens as he discovers how some plants have evolved to shed their dependency on water, enabling them to survive in the driest environments.

A look behind the scenes at the making of David Attenborough's Kingdom of Plants, filmed at London's Kew Gardens.