When was the last time you stepped back and took a long hard look at your garden? Television presenter and writer Rachel de Thame talks to Chris about her new column discussing how and why gardeners should tackle making changes to their plots. Former RHS Director General and confirmed galanthophile Gordon Rae shares his love of snowdrops and their surprising diversity. Plus Head of Plant Health, Gerard Clover, explores one of the biggest threats facing UK gardens and horticulture today: the bacterial plant disease xylella.