After being awarded both the coveted Chelsea 'Best in Show' and gold medal, Chris is back to Beechgrove to tend to the rose garden. Meanwhile, Jim reviews the progress of his previously sickly houseplant collection. Brian is creating a new natural feature to ebb and flow by Beechgrove's waterfall using lady's slipper orchids, which look exotic but turn out to be surprisingly easy to grow. Carole visits Richard and Ellen Firman's wonderful, wildlife-friendly woodland garden near Ellon, Aberdeenshire, to marvel at their hosta collection