Guerrilla Gardening is a – Famous London Landmarks – letter card post marked 5.15pm, 9th January 1978, Hounslow, Middlesex, addressed to Mr & Mrs Barlow, 24 Laburnum Grove, March, Cambridgeshire. The correspondence side of the letter card is written in an Arabic script. Gardeners perform their acts of guerrilla gardening – nurturing, planting, and pruning London’s landscape.