Gardens of the mind are so much easier to bring into bloom than the real things, which have a wretched tendency to be heaving with slugs and attacjed by unnerving, unnamed varities of fungal growth. In this illustrated talk the author of The Tulip explores some literary gardens, taking us on a tour with Wodehouse round Blandings Castle, with Jane Austin round Donwell Abbey and with George Eliot through a kitchen garden.