Third episode of the six-part series exploring plant-based natural remedies and beauty treatments.
Ethnobotanist James Wong focuses on trees. His recipes for natural tree remedies include a soothing gel for varicose veins made from conkers, a fragrant cologne made from pine, a lotion to tackle head lice and a traditional tea which could help improve memory function.
It is a fascinating mix of gardening, science and history, and the volunteers who try James's remedies find out if they can actually help.
the recipes in this episode can be found here http://www.bbc.co.uk/tv/features/growyourowndrugs/episode3.shtml
