Eric Robson and the panel are at the RHS Tatton Flower Show.
BBC Radio 4
Eric Robson hosts this week's episode in Staffordshire.
Chaired by Eric Robson, the GQT team is in Ambleside, Cumbria.
Peter Gibbs chairs the horticultural panel programme from Gressenhall, Norfolk.
The GQT team visit Glenarm Castle in Northern Ireland, with Eric Robson in the chair.
Eric Robson hosts a postbag edition from Matt Biggs's garden.
Chaired by Eric Robson, the GQT team is in Penicuik, Midlothian.
Eric Robson chairs the horticultural panel programme in Stoke-on-Trent.
Eric Robson hosts this edition of GQT with local gardeners in Cornwall.
Eric Robson chairs this special edition of GQT with members of the Chelsea Fringe, London.
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