For a highly invasive plant, Japanese knotweed looks unassuming. With green bamboo-like stems, spade- or heart-shaped leaves and, in late summer, clusters of white or pale green flowers, Japanese ...

Oxfordshire warns of invasive Japanese knotweed: a small fragment can regenerate and quickly destroy native species today ...

Add Yahoo as a preferred source to see more of our stories on Google. Japanese knotweed in the sunshine - DyziO/Shutterstock There are few garden discoveries more disappointing than realizing that the ...

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Aggressive Japanese knotweed is thriving and spreading faster than usual this summer, experts have warned. The plant, which can grow up to 10cm (4 inches) per day, is reaching its peak season.