Japanese knotweed stems look a lot like bamboo canes,' he explains, pointing out that they are hollow and can grow up to 2-3 metres in height. 'You'll also find the clusters of creamy white ...

Gardeners are being warned about fines and legal costs of up to £30,000 for failing to report one type of plant in their ...

Giant knotweed, a terrestrial herbaceous plant in the Polygonaceae family, invades along waterways, roads, forest openings, and disturbed sites where dumped. Key characteristics of this invasive ...

Independent Councillor Sam Locke has warned that invasive Japanese knotweed has the potential to cause catastrophic damage to the Tralee-Fenit Greenway if efforts to control the plant species are not ...

Giant knotweed (Polygonum sachalinense) has been documented nearby in Wisconsin and Michigan. All three species have very similar characteristics, can be spread by fragments of the root and stem ...

Research published in New Phytologist provides insights into why the invasive plant Japanese knotweed is so successful at outcompeting native plants. Japanese knotweed (Reynoutria japonica), which ...

Japanese knotweed hibernates during the winter months ... like shoots sprout from the earth and quickly form hard green stems, growing at a rapid rate to reach approximately three metres in ...

typically grows to be 10 feet tall with stems that are hollow like bamboo spade-shaped leaves with pointed tips and flat bases that are smaller than the leaves of invasive giant knotweed produces ...