In Britain it first became naturalized in South Wales,
growing on coal tips as early as 1886.
It has since become widely established and is regarded as the most invasive plant in Britain
At Dukes Meadows this non-native invasive plant which spreads by underground rhizomes and by small parts of the stem or rhizomes becoming detached and growing elsewhere. Large areas of the riverbank between Chiswick and Barnes bridge's have been colonized and numerous pockets elsewhere threaten to spread.If this is allowed to happen these areas will become ecologically degraded because the plant does not support native flora and fauna. Plus completely take over and block all views to and from the river
Two members of the Friends of Dukes Meadows are putting together a action plan to facilitate its removal, taking into account advice given by Dr Lois Child of Loughborough University and involving Hounslow's CIP, Thames 21 and The Environment Agency.
Once the project starts we estimate that it will take between 3 to 5 years to complete.
More Information on Japanese Knotweed
Japanese Knotweed Project
Japanese Knotweed is native to Japan, Taiwan,
Northern China and Korea and was introduced to
Europe as an ornamental and fodder plant in the
early 19th century
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