Question and answer session featuring all designers and question from the floor.

Swedish landscape architect Monika Gora is best known for her temporary exhibits within existing landscapes in which she aims to transform the relationship between landscape and buildings. She speaks on 'Inventing Places and Exploring by Doing'. www.gora.se

Fergus Garrett, head gardener at Great Dixter in Sussex talks about the dahlia trials at Wisley and comments on some of the findings and his favourites.

In the September podcast we indulge in our delight for dahlias with interviews from the RHS Dahlia Trials Open Day held at Wisley in Surrey. We also hear from gardener and television presenter Sarah Raven about her top tips for growing vegetables through the autumn and winter. And columnist Frank Ronan is delighted by colour in the garden.

This month we hear from photographer Nic Barlow, who has pursued a life-long passion to record in pictures some of the most notable follies and grottoes of Europe. He talks about the book that he has recently released. And regular columnist Frank Ronan introduces us to Mrs Trug.

A summer special with the Gardens Illustrated team getting together to chat about recent garden visits they’ve made. They talk about the Hampton Court Flower Show, a garden in Cornwall, village scarecrows and all things roses.

This month we've a tour of the latest attraction at the Royal Botanic Gardens Kew, with head of arboriculture Tony Kirkham introducing the exciting new Rhizotron and Xstrata Treetop Walkway. We also talk to salad-growing expert Charles Dowding about his new book Salad Leaves for All Seasons.

Gardens Illustrated editor Juliet Roberts spoke to three garden experts, Tim Richardson, Dan Pearson and Andrew Wilson, about this year's Chelsea Flower Show. They each give their opinions on the event picking up on current trends and must-have plants.

A busy month in the garden and in the podcast with our first outside broadcast from the new Shirley Sherwood Gallery at the Royal Botanic Gardens, Kew with Dr Sherwood showing us round the gallery's display of botanical art. Then there's an interview with author Christopher Stocks about his latest book Forgotten Fruits and Frank is mesmerised by the colour blue. Don't forget to visit our new forum and get involved in the various discussions.

Sir Roy Strong, who created his garden The Laskett together with his late wife, and Fergus Garrett, head gardener at Great Dixter in Sussex (home to the late Christopher Lloyd) talk about their experiences of gardening with a legacy. They consider whether a garden can be expected to live beyond the life of its owner, and how to move a garden forward while respecting its heritage.