This is our Green Planet: a hidden world where plants care for other plants and can smell, taste, touch, hear and even . . . 'talk'.

In the world of plants, time passes more slowly, but if we speed months into minutes we can peer into this hidden world and realise: it's a battleground. Plants are working to thwart their enemies, and to trick animals into working for them.

Right under your feet, and all around you, is a secret world you've probably never noticed. Until now. L ...