It's one of the busiest times in the horticultural calendar and there's lots to be done at Beechgrove Garden just outside Aberdeen. Calum Clunie and Lizzie Schofield unwrap dahlias after a winter in the dark, and Lizzie is in the gravel garden splitting and separating crocosmia. There's a visit to a beautiful spring garden in Argyll and tips on how to refresh any potted box hedge that is looking a bit brown and straggly. Plus all the usual hot tips and handy hints on what you should be doing in your own garden, balcony or window box right now.