Guttation and CAM (aka Crassulacean Acid Metabolism) are central processes for many of our houseplants, but what do they involve? Terrestrial ecologist Dr Polly Schiffman explains all (and we find out which is her favourite!) Plus I answer a question about a lanky Pilea and we hear from Joe from Texas in Meet the Listener. For full show notes visit https://www.janeperrone.com/on-the-ledge/2020/7/9/episode-148-guttation-cam