Gardeners' World Top Tips Guest cast, played by Carol Klein Episode 1x01: Episode 1 (Dec 1, 2008) Episode 1x05: Episode 5 (Dec 5, 2008) Episode 1x06: Episode 6 (Dec 8, 2008) Episode 1x07: Episode 7 (Dec 9, 2008) Episode 1x08: Episode 8 (Dec 10, 2008)