After almost 40,000 questions over 75 years, is Gardeners’ Question Time in danger of running out of new questions? The programme's presenter Kathy Clugston gives an answer to that, and a range of other listener comments.

And what do Radio 4 listeners make of the station’s science programmes?

Presenter: Roger Bolton
Producer: Kate Dixon
Executive Producer: Samir Shah

A Juniper Connect production for BBC Radio 4