Kathy Clugston and the gardening experts are in Huntingdonshire. Christine Walkden, Anne Swithenbank and Bob Flowerdew are on hand to answer questions from green-fingered enthusiasts. This week the panel discuss the fundamentals to feeding plants, how to make a level garden, and give recommendations on replacing Escallonia hedges. They also discuss their favourite trees, which unusual seed they have germinated, and how to produce the best fruit on a Gooseberry tree. Matt Biggs visits Osterley Park in West London. He chats to Head Gardener Andy Eddy where there is a 250 year old Cork Tree which is one of the 'Great Trees of London'. Produced by: Laurence Bassett Assistant Producer: Jemima Rathbone A Somethin’ Else production for BBC Radio 4