Japanese knotweed is one of the most infamous invasive species in the UK, known for its ability to rapidly spread and thrive in any condition and its difficulty to remove. Whilst you may be very familiar with Japanese knotweed, you may not have heard of a very similar plant, Giant knotweed.
Giant knotweed and Japanese knotweed have very similar names, and indeed are both members of the Fallopia family, a species of flowering plants native to Asia. However, some people use the names ‘Giant knotweed’ and ‘Japanese knotweed’ interchangeably, but it’s worth knowing that these are in fact two different plants.
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Is It Japanese Knotweed?