Adam Frost and Advolly Richmond celebrate the horticultural genius of William Robinson in the gardens of his former home, Gravetye Manor in Sussex.Fresh off the back of her success at Hampton Court Palace Garden Festival, Sue Kent gives her own garden some TLC and creates a special container display using small pots. There's also a passionate grower in London who uses every available space in his garden to grow a vast range of vegetables, and in Manchester is a gardener who is inspiring his local community after transforming the alley behind his house into a floral paradise.