HOW TO IDENTIFY JAPANESE KNOTWEED
The easy way to identify Japanese Knotweed is by sending Knotweed Services (UK) Ltd your images. It’s a quick and free service – simply fill in the form to the right or use any of the methods available.
The images below show you the different appearances of Japanese Knotweed in each season.
SPRING
March – April
Shoots and stems are a purple/red colour with curled pinky reddish leaves. As the canes grow the leaves gradually unfurl and turn green.”
SUMMER
May – August
Shoots and stems are green with purple speckles. Leaves become heart shaped and turn green.
AUTUMN
September – October
Stems are virulent, growing upwards of up to six feet, cream/white flowers appear late summer/autumn.
WINTER
November – February
Stems change to dark brown and are hollow, brittle and absent of leaves or flowers.
