You might think of gardening as an intrinsically green activity, but our verdant hedges and lush lawns can cause some very dirty habits. In an eye-opening interview, low-carbon gardening expert Sally Nex gives the lowdown on how ditching petrol power tools is important for the health of both gardeners and our planet. Plus we head to COP26 host city Glasgow to discover a pioneering urban seed library that helps create resilience in local food systems. And in Cornwall we meet artist Dr Alexandra Daisy Ginsberg who's created an inter-species installation using an algorithm to create gardens designed from the perspective of pollinating insects, rather than humans. For links to more information on today's topics please check out our show notes or visit rhs.org.uk/podcast