This week we meet Andrew Forsyth of Weasdale Nurseries in Cumbria who explains the challenges of gardening 850ft up in the hills of Cumbria, and shares tips on how to garden in cold and exposed situations. Kate Risely, head of pioneering research project Garden BirdWatch, explains what changes have been observed since the project launched in 1995. Plus RHS advisors share insight on epiphytic plants and how to encourage birds into your garden.