Not for use in UK newspapers until 25 Oct 2012 Mandatory Credit: Photo by Stephen Simpson / Rex Features (1939174h) A 34-year-old Japanese Cork-Bark Maple bonsai tree Autumn in Kew Gardens, London, Britain - 21 Oct 2012 It was grown from seed in the pot in which it sits. The seed came from Japan in 1967. Warm sunny days produce sugars in the leaves which help create the pigments that make up its autumnal hues.