Giant Hogweed Survey & Removal

Giant hogweed poses a serious risk to public health. Contact can cause severe skin burns and long-term injury — particularly where plants are accessible to the public, residents, or workers.

Our professional surveys and removal services establish control early — reducing exposure risk, meeting legal obligations, and preventing escalation.

Does Giant Hogweed Require Action?

Yes. Giant hogweed is subject to strict control requirements due to the health risks it presents. 

If it is present, landowners and duty holders are expected to take appropriate action to prevent harm, spread, or exposure. The real question is not whether action is required, but how quickly and at what level it needs to be addressed. 

That process begins by establishing a clear, defensible position on what’s present and the level of risk it introduces. 

Professional Identification

With Giant Hogweed, professional identification is about formally confirming whether a health risk exists and what controls are required. 

 

A professional survey establishes: 

Presence

Whether or not giant hogweed is present

Extent

Its extent and proximity to people, boundaries, or access routes

Risk

The level of exposure risk

Control

Whether immediate control measures are required

Until this position is confirmed, land can be treated as a potential hazard — increasing liability and restricting safe access. 

What Happens Next

Giant hogweed is governed by the same legal obligations across residential, commercial, and public-facing sites. Establishing a formal position follows a defined process — designed to confirm the facts, apply appropriate controls, and reduce risk without unnecessary delay. 

 

What differs is the consequence: public safety, liability, and speed of response — not the requirement itself.

 

Our process typically follows four steps: 

1. Discuss the situation

We start by understanding where the hogweed has been identified and who may be affected — residents, workers or the public — and whether immediate action is required.

2. Professional survey

Where needed, a professional survey confirms presence, extent and risk level, forming the basis for any control or removal strategy.

3. Removal or control (if required)

If action is triggered, we implement the appropriate treatment or removal method to reduce exposure risk and prevent regrowth or spread.

4. Ongoing support and assurance

Where applicable, this includes monitoring, documentation and confirmation of control to support compliance and ongoing site safety.

What This Gives You

Once giant hogweed has been formally assessed, uncertainty is removed from the situation. 


Instead of risk assumptions, you have: 

What you receive Why it matters
A clear, documented position on presence and extent Establishes whether hogweed is present and how far it extends, removing uncertainty at an early stage.
Confirmation of health and exposure risk Clarifies the level of risk to residents, workers or the public, supporting proportionate decision-making.
Defined control or removal measures Sets out clear, site-specific actions where intervention is required.
Professional documentation to support duty of care Provides written evidence that appropriate steps have been taken to manage risk responsibly.
A clear route to bringing the site back under control Establishes a practical and defensible path toward compliance and ongoing site safety.

This allows sites to be managed safely and responsibly, without ongoing exposure or escalation. 


Where required, documentation is prepared to a standard that can be relied on by local authorities, managing agents, or health and safety stakeholders. 

Designed to Stand up to Scrutiny

Yes. Where giant hogweed presents a potential health risk, documentation must be clear, defensible, and proportionate. 

Our surveys and reports are prepared to support review by: 

They typically set out: 

The objective is to demonstrate that the risk has been identified and addressed appropriately. 

What Are the Risks of Not Addressing This Properly?

With giant hogweed, risk escalation is usually driven by exposure rather than spread alone. 

 

Common consequences include:  

These risks arise from delay and uncertainty, not from the plant itself. 

giant hogweed in flower

Costs, Timeframes & Assurance

Costs and timeframes depend on site access, extent, and urgency. 

Where removal or long-term control is carried out, this is supported by: 

This provides assurance that the risk has been addressed responsibly and sustainably. 

Giant Hogweed FAQs

Frequently asked questions

Yes. Giant hogweed sap can cause severe skin burns and long-lasting sensitivity to sunlight if it contacts skin and is exposed to UV. Risk is higher where plants are near paths, play areas, public access, or working zones. 

Where giant hogweed is present, appropriate action is expected to prevent harm and reduce the risk of spread. The correct response depends on location, extent, and exposure risk — the obligation is consistent, but the level of control required varies. 

Avoid contact, keep people and pets away, and do not cut or strim it. Disturbing the plant can increase exposure risk and spread. The safest next step is professional confirmation so the position can be assessed and the right controls applied. 

A professional assessment confirms whether the plant is giant hogweed, maps its extent, and considers proximity to access routes and boundaries. The outcome is a clear position on what’s present and what level of control is required to manage risk appropriately. 

Timeframes depend on site access, extent, and the risk profile. Where exposure risk is high, the priority is early control measures to reduce immediate hazard, followed by an appropriate treatment or removal programme aligned with the site’s use. 

Control is typically based on targeted herbicide treatment and safe site management to prevent contact and regrowth. The method used depends on the plant’s maturity, the site setting, and proximity to people or sensitive areas. The aim is effective control without unnecessary disruption. 

Yes. Giant hogweed spreads primarily by seed and can establish quickly if not managed. Long-term control focuses on preventing seeding, treating regrowth, and applying appropriate monitoring where needed, especially near boundaries and watercourses. 

Yes. Where required, documentation can be provided to show what was identified, the extent, the risk considerations, and what actions have been taken or are planned. This supports duty of care, site management, and third-party review where needed. 

Book a professional survey today.