Japanese Knotweed – Know your enemy! – July 2017

July 6, 2017

Japanese Knotweed is a non-native, invasive species that is rated among the 100 worst alien species in the world by the Global Invasive Species Programme (GISP), and it is here in Claremorris!

Japanese Knotweed was first introduced into Ireland by the Victorians as an ornamental plant for their gardens but it has proven to be a very aggressive coloniser as here in Ireland it has none of the natural enemies that are present in its native habitat of Japan and Nothern China.

Due to its rigorous growth, Japanese Knotweed is becoming more common and is widely distributed across a variety of habitats in Ireland including roadsides, hedgerows, railways, riverbanks, lakes, water-courses and waste-grounds.

Japanes Knotweed spreads rapidly, growing up to 2 metres in one season with a root system underground that can stretch for 7 metres.

It has the ability to grow through cracks in asphalt/tarmac, concrete, stone walls and into drains causing significant damage.

If you have Japanese Knotweed in your garden or on your property it is best to leave it be as it thrives on disturbance.
For advice, information and assistance call 094 937 1830
or email: info@clarichmayo.com

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