Invasive Weed Gallery: Japanese Knotweed, Giant Hogweed and More

Below is a selection of images showing common invasive weeds found across the UK, including Japanese Knotweed, Giant Hogweed, Himalayan Balsam and other problematic species. If you would like our specialists to identify a plant for you, simply email us a photo — click here to send an email

Invasive weeds are a growing problem across the UK, affecting residential gardens, commercial sites and development projects. Our specialists at IVM have compiled this image gallery to help homeowners, surveyors and contractors recognise the most common invasive species, including Japanese Knotweed, Giant Hogweed, Himalayan Balsam and other harmful plants. Accurate identification is the first step toward safe and compliant management, and this gallery provides real examples from sites we have inspected and treated nationwide.

  • All
  • Japanese Knotweed
  • Giant Hogweed
  • Other Weeds
Japanese Knotweed leaf and flower close-up
Japanese Knotweed Leaf & Flower
Japanese Knotweed growing in a residential garden
Japanese Knotweed in Garden
Japanese Knotweed excavation and root removal
Japanese Knotweed Excavation
Giant Hogweed leaf close-up
Giant Hogweed Leaf
Japanese Knotweed rhizome showing regeneration potential
Knotweed Rhizome Regeneration
Mature Giant Hogweed plant
Mature Giant Hogweed
Japanese Knotweed damaging tarmac surface
Knotweed Damaging Tarmac
Japanese Knotweed growing in a front garden
Knotweed in Front Garden
Japanese Knotweed damaging a brick wall
Knotweed Damaging Wall
Himalayan Balsam plant
Himalayan Balsam
Devil's Apple invasive plant
Devil's Apple
Marestail (Equisetum) invasive weed
Marestail
Mature Giant Hogweed plant
Giant Hogweed
Giant Hogweed flower head
Giant Hogweed Flower
Giant Knotweed plant
Giant Knotweed