In these two episodes, Dr Geetha Ramaswami talks about plants that have travelled far, far away from their native lands and have invaded and colonised new areas. She tells us about why and how this happens and what the ecological effects of such invasions by plants are. Tune in!

In part II, she tells us about what governments and conservationists are doing to tackle invasive plants, and also what you and I can do to help control them.  Do ask us questions in the comments, we’ll be delighted to keep this conversation going!