David Stafford finds out about wild orchids so rare that they have to be guarded day and night to protect them from collectors driven to illegal lengths by their passion. Ray Mears gets down to some serious campfire cooking while geologist Richard Fortey explains that the backbone of England was once a coral sea. Plus facts about the willow tree, whose trailing branches conjure images of lazy summer days.
Producer Kathryn Moore ; Series producer
Dick Colthurst