A century-old garden for chocolate factory workers in Boumville, Birmingham, enjoys the first of many visits from Rachel de Thame and Joe Swift , while Alan Titchmarsh pots up new varieties of begonias and Chris Beardshaw tackles borders. Series producer Colette Foster (S) (W) WEBSITE: www.bbc.co.uk/gardening
BBC BOOK: Gardeners' World Complete Book of Gardening, price £12.99 Alan Titchmarsh on choosing trees for a small garden: page 43