Monty Don asks if reserves fenced off for the benefit of wildlife are effective. (R)
The latest news about food, farming and the countryside. Presented by Caz Graham.
Monty Don finds out if national parks are good for wildlife.
Prof Kathy Willis explores the smuggling of rubber seeds from South America.
Prof Kathy Willis examines Charles Darwin's use of orchids as a scientific tool.
Prof Kathy Willis examines how one man's flower was turning into another man's weed.
Snowdonia's slate once roofed the world. Find out what has become of the quarries today.