|Leaves||Alternate rounded triangular to sharp point. Up to 200mm long.|
|Flower||Creamy white in loose, branched spikes|
|Seeds||To 5mm heart shaped winged (sterile)|
What is it?
Japanese knotweed is one of the most invasive plants in the UK. It grows rapidly (over 1.5m in a month) and spreads easily by stem fragments and rhizomes (underground creeping stems).
What damage does it cause?
It can damage buildings, structures and roads. It can block drains and waterways leading to flood damage. It reduces biodiversity and dominates native plants. It prevents property sales, remortgaging and development until is eradicated.
What does it look like?
1Shield shape leaf
2Creamy coloured flowers (late summer)
3Zig Zag reddish stems, turning green lower down
If you think you have discovered Japanese Knotweed on or near your property:
Do know what Japanese knotweed looks like! Being able to identify it in all seasons will help you remain vigilant and spot potential infestations on your property quickly.
Don't damage! Fragments of Japanese knotweed stem material can create new shoots and roots, further spreading the infestation.
NEED TO SPEAK TO THE IWA TEAM?
CALL IWA NOW ON 0845 676 9252