Alan Titchmarsh is joined by Diarmuid Gavin , Chris Beardshaw and Rachel de Thame for a preview of this week's horticultural extravaganza in London. There's also a tribute to the Queen Mother, including a look at her garden at the Castle of Mey in Scotland. Plus interactive features are available to allow digital viewers to explore the gardens for themselves.
Series producer Karen Mackinder ; Executive producer Owen Gay WEBSITE: www.bbc.co.uk/gardening
Rachel de Thame - the belle of the Chelsea ball: page 32; Creating a garden for Chelsea: page 34