To snap or to cut - what is the best way to dead head my roses? Why are my tomatoes falling off before turning red? Which plant would you relegate to the compost heap? Kathy Clugston and her team of GQT experts are at the Army Flying Museum in Hampshire to answer all these questions and more. Joining her this week are garden designer Juliet Sargeant, head gardener Ashley Edwards, and pest and disease expert Pippa Greenwood. Alongside the horticultural Q and A, we hear from Deputy Director and Head of Science of the University of Oxford Botanic Garden, Chris Thorogood who talks us through Mediterranean-inspired gardening in the UK. Executive producer: Hannah Newton Producer: Bethany Hocken Assistant Producer: Dulcie Whadcock A Somethin' Else production for BBC Radio 4