Page last updated at 15:59 GMT, Monday, 8 March 2010

Superweed Japanese knotweed's astonishing growth

The rapid spread of Japanese knotweed is causing huge problems across the UK.

This timelapse footage reveals the superweed grew more than 1m-tall (3ft) in just three weeks.

SEE ALSO

Story Tools

PRODUCTS & SERVICES

Americas Africa Europe Middle East South Asia Asia Pacific