In this episode, the Beechgrove team are looking to the future. George plants up a large container with what he calls a 'bulb lasagne', layering different kinds of bulbs for layers of long-lived colour in the spring. Meanwhile, Carole shows different methods of propagating new plants for next year, while Chris plans and plants a new border for year-round colour. And Kirsty is looking at why green roofs could be a thing for the future.