Japanese knotweed is a fast-growing and strong clump-forming perennial, with tall, dense annual stems. Stem growth is renewed each year from the stout, deeply-penetrating Rhizomes are creeping swollen ...

Hampshire hotspots for the invasive plant species Japanese Knotweed have been revealed in new data from Environet. The species have their prime time for growing during the spring and summer, so ...

Do you live in a Japanese Knotweed hotspot on the Isle of Wight? A new map by Environet has revealed the hotspots for Japanese Knotweed. New figures show that Newport and Ventnor are the worst hit ...

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 ...

The hotspots for an invasive plant species have been revealed, as experts have issued a warning. Invasive plant specialist Environet has released this year’s regional Japanese knotweed hotspots ...

Japanese knotweed can grow up to four inches a day and forms dense thickets which can kill native plant species. Another 34 cases were reported within the Windsor area, while 68 reports came ...

The invasive plant is the most common of the four knotweed plant species found in the UK and is commonly located near rivers and streams, and in manmade habitats. Japanese Knotweed can wreak ...

With the summer growing season now over, Environet has revealed the areas worst impacted by Japanese knotweed. Worcester has been hit the worst by Japanese knotweed, with 128 incidences in 2024. There ...

The latest hotspots of Japanese knotweed in Cambridgeshire have been revealed. The invasive species is currently "thriving" ahead of its usual growing period due to warmer and wetter weather this ...

Japanese knotweed is a non-native, invasive plant that was imported to the UK in Victorian times and is known as a pest species that outcompetes native plants and causes damage in the built ...

With the summer growing season now over, Environet has revealed the areas worst impacted by Japanese knotweed. Worcester has been hit the worst by Japanese knotweed, with 128 incidences in 2024.

With the summer growing season now over, invasive plant specialist Environet has revealed the worst hit area in England for Japanese knotweed. New data from Exposed shows how sightings reported ...