With lockdown affecting new filming, Monty Don is at Longmeadow to take an indulgent, horticultural romp through the Gardeners' World archives. From delphiniums to clematis, irises, orchids and dahlias expert growers share their passion along with hints and tips. Plus, Carol Klein visits a garden in Shropshire where she discovers picture perfect plant combinations, Adam Frost travels to the Cotswolds and finds out what happens when plants are brought together with imagination and daring and Nick Bailey offers a guide to the world of Britain's favourite flower -- the rose.