Reynoutria japonica, more commonly known as Japanese Knotweed, is a species of herbaceous perennial plant. It is native to East Asia in Japan, China and Korea but is also found in the UK.

Experts name 8 invasive plants to look for in your garden that have become widespread across the UK, from giant hogweed to ...

Knotweed can grow at a rate of 10cm per day in the summer Back in the nineteenth century, when Victorian engineers were designing the latest in transport technology, Japanese knotweed sounded like ...

The world's largest field trial on the control of Japanese knotweed, conducted in Wales, has found that eradicating the plant is not possible. Researchers from Swansea University have carried out ...

The forest behind our house has turned into a horror movie, starring an armada of non-native invasive weeds. Their evil, ...

KISMA has been managing a quarter-acre of Japanese knotweed area in Kearsarge for the past four years with very positive results (see images below). cover portions of the knotweed patch with tarps or ...

Key characteristics of this invasive species include: grows to be 12 feet tall with hollow stems resembling bamboo has broad heart-shaped to spade-shaped leaves that are larger than your hand, and ...