Plant known as Joseph's coat of many colours
By Bri
United Kingdom 
Green and red leaves, small border or bog plant
On plant
not known
13 Dec, 2008
Answers
Houttuynia 'Chameleon' was also my first thought.
There is also Amaranthus tricolor, commonly known as Joseph's coat
13 Dec, 2008
I would have said Houttuynia, as well. Just be warned that if it likes your garden, it can become a nuisance - almost invasive!
14 Dec, 2008
Previous question
Possibly houttuynia cordata' Chameleon'? Search on houttuynia for pictures on this site
13 Dec, 2008