Monty visits Liz and Rod Collenette sub-tropical two-acre garden on the sunny island for the first time and helps to improve the view by cutting back a large tree. Ann-Marie returns to Mike Woodall and Alison Buckley's boggy back garden in Stockport and they travel to Stapeley Water Gardens in search of inspiration for plants that thrive in wet, marshy conditions. Meanwhile, Carol Klein is back with Diana Harold in her seaside Felixtowe plot to construct new compost bins and screen off the area with a trellis.