Whether you are staying at home or going away on holiday, Monty has plenty of tips for how to keep the garden looking good and remaining productive during August. Joe Swift pays a visit to the Northumberland garden of Chris Mullin who, after over 20 years as a member of parliament, has turned his attention to the renovation of his walled garden. And National Trust head gardener Alan Power catches up with the transformation of Shakespeare's New Place garden in Stratford-upon-Avon.