The Present: Inside the world’s largest seed bank

The Millennium Seed Bank holds over 2.5 billion seeds - but where do they all come from, and how do they end up in those deep underground vaults? In this episode of Unearthed: The need for seeds , Cate Blanchett joins UK Seed Conservation Coordinator Ted Chapman and UK Conservation Projects Officer Isabel Negri on a seed-collecting mission in the South of England. Searching for yellow rattle, she…