This week, we’re investigating what exactly makes a plant hardy, how tropical plants survive British winters, and the ways in which what thrives here may be changing – especially in urban environments like London. Presenter Gareth Richards and RHS botanist James Armitage take a tour of weird and wacky tender trees that have survived here against all odds. And, Hillary Collins of Grafton Nursery gives us a behind the scenes look at what you can do to help your eucalyptus withstand British winters. Presenter: Gareth Richards Contributors: James Armitage and Hilary Collins Contact: [email protected] Links: Mediterranean garden plants RHS hardiness ratings Hardy Eucalyptus (Grafton Nursery)