Bristol is the Japanese knotweed 'capital of England', new data from Environet shows. In the year to date, there have been 1,440 reported sightings of Japanese knotweed in the South West city, ...

There are few garden discoveries more disappointing than realizing that the beautiful plant in your yard is actually Japanese knotweed (Polygonum cuspidatum), an invasive plant that is a problem in ...

A growth of Japanese knotweed in Ohio's Cuyahoga Valley National Park. (From National Park Service) It comes from Japan, and it can’t be stopped. You can’t burn it, drown it or bury it. Concrete is ...

At first glance, Japanese knotweed may look a bit like bamboo, but the highly invasive plant has multiple identifying characteristics. Its stems: Jointed, bright green, hollow and covered with nodes ...

GRAND RAPIDS, Mich. (WOOD) — An illegal and invasive plant could have a disastrous effect on your property. The Ottawa Conservation District is warning residents about what they should do if they find ...

Sophie Hocking works for Swansea University. She received funding from Complete Weed Control Ltd as part of her KESS II PhD to support her research. When it was introduced to Europe in the mid-19th ...

Along with Bradford pear and the more than 60 invasive plants Ohio has banned, one is so aggressive that it is nearly impossible to eradicate. And, it is lowering property values worldwide where it's ...

Managing weeds in your yard can seem like an impossible task, but when those weeds are invasive, it can be even worse. Not only is Japanese knotweed (Fallopia japonica) invasive and damaging, but this ...

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 ...

Japanese knotweed, a terrestrial herbaceous plant that is in the Polygonaceae family, invades along rivers, streams, roads, and in disturbed areas or where dumped. It prefers full sun and rich soils ...

Japanese knotweed undergoes visible changes in autumn. The weed is more visible in colder months and here's what to do if you think you have it in your garden. During the autumn months, numerous ...