Humans have a complicated relationship to plant stimulants, but every human culture throughout history has used them. To explore what this tells us about us the Grumpy Botanist explores the history of opium.

Ever wondered what causes those flaming autumn/fall colours? Allow the Grumpy Botanist to explain a bit about the miracle of leaf chemistry... you'll never look at leaves (or coffee) in the same way again. 

Not many people know that Britain's native orchids played a major role in Darwin's exploration of what he called 'descent by modification' (known today as 'evolution'). In fact, not many people know about Britain's dozens of orchid species, so why not listen in to find out more.  

Join the Grumpy Botanist in a wander through the rich traditions behind yuletide plants, exploring how evergreens, mistletoe, and other seasonal greenery came to symbolise life, hope, and renewal and how Christmas trees emerged from religious conflict. Blending folklore, history, and cultural meaning, it reveals how plants have been part of winter celebrations for centuries.

Join the Grumpy Botanist as he unearths the surprising history and cultural power of lawns, uncovering how a patch of grass became a symbol of status, order, and identity. From aristocratic estates to suburban neighbourhoods, learn how lawns shaped social values, environmental attitudes, and could destroy - or save - our nature.

The Grumpy Botanist digs up the spooky roots of Halloween, tracing its ancient origins and uncovering how pumpkins—once unknown in Europe—became a symbol of the season. From early harvest rituals to the surprising evolution of the Jack-o’-lantern, explore how old traditions, migration, and folklore shaped the Halloween we know today.