Other Invasive Weeds Eradication

Learn more about the other invasive weeds that we are entrusted to treat

Quick, Cost Effective Treatment For All Invasive Weed Challenges

It’s not just Japanese Knotweed that causes problems for land owners in the UK. We treat and eradicate all invasive weeds. You can read more information below about the weeds you may be dealing with, or use our free identification service.

Giant Hogweed (Heracleum mantegazzianum)

Introduced from Central Asia in the nineteenth century as an ornamental plant, it is now widespread throughout the British Isles, especially along riverbanks.

It has a dark reddish-purple stem and spotted leaf stalks, it is capable of growing approximately 3 – 5 metres tall and is very dense. It flowers mid-May through July, with numerous white flowers clustered in an umbrella-shaped head containing approximately 1500 seeds which can lie dormant in soil for years.

Giant Hogweed contains a substance within its sap that makes the skin sensitive to ultra violet light resulting in severe burns to the affected areas, producing swelling and severe, painful blistering.

Horsetail (Equisetum arvense)

A perennial plant also called ‘Marestail’ or ‘Pipeweed’. It is an ancient relic of primeval times which is native to the UK, some of the earlier species reached up to 30 metres in height.

Horsetail reproduce by spores rather than seeds and has similar problematic properties to Japanese Knotweed, although not as aggressive.

It is able to push up through hard surfaces such as asphalt, has an extensive rhizome system which once fragmented can re-grow to form new plants.

Himalayan Balsam (Impatiens glandulifera)

Introduced in 1839 from Western Himalaya, Himalayan balsam is now a common weed along most of Britain’s river banks and in ditches. It can grow up to 3 metres annually from a seed bank which can stay viable for up to 2 years.

The seedpods explode when touched or moved by the wind expelling them up to 7 metres from the parent plant. This dense plant out competes the native fauna reducing bio-diversity and the lower level vegetation, then in winter when it dies back it exposes the soil to erosion. Its flowers produce high levels of nectar which makes them attractive to bees and other insects resulting in less pollination of native species.

Ragwort (Senecio jacobaea)

Common Ragwort contains pyrrolizidine alkaloids (complex molecules) which are poisonous to equines and bovines. When consumed, the alkaloids build up over time and cause damage to the liver, sometimes resulting in death.

Ragwort is also harmful to humans as it can enter the bloodstream through contact with the skin. It may cause an allergic reaction called Compositae Dermatitis.

Free Identification Service

Fast, Free Identification Service for Invasive Weeds

Unsure if you’ve spotted Japanese Knotweed or another invasive weed? Let our experts help with a quick and easy identification service. Follow these simple steps:

  1. Snap a Clear Picture Take a clear picture of the weed you’re concerned about.
  2. Send it Over Fill in the form provided and upload your picture. Feel free to include any additional information about your situation in the enquiry field.
  3. Receive Expert Advice Our team will promptly review the image and get in touch with you. We’ll confirm if it’s Japanese Knotweed or another type of invasive weed, and explain your options and the best solution.

Benefit from a fast response, precise identification, and practical advice – all without obligation. Take the guesswork out of weed identification with Nimrod Environmental.