Big, Bad Botany: The Mysterious Side of Plants (2015)
Every spring, millions of gardeners head outside to spruce up their flower beds, trees, shrubs and vegetable patches, without thinking much about the history – and sometimes toxicity – of some of their plantings. We talk to a man who has researched the unusual side of gardening and find out about some very interesting plants, and how they were cultivated and used in the past as hallucinogens, …













