What Is Giant Hogweed And Is It Dangerous?
This month, we’re shedding light on a plant that’s causing quite a stir across the UK – the giant hogweed (Heracleum mantegazzianum). While it may look impressive, this invasive species poses significant risks to people and the environment. Here’s everything you need to know to stay safe!
Why should we worry about giant hogweed?
At 9/10ths of the height of a giraffe, the giant hogweed may sound like a plant from a Roald Dahl book. Unfortunately, it’s anything but a BFG!
Giant hogweed is a dangerous plant that can cause severe burns, blisters and long-lasting scars.
As you can see from this map, it’s rife!
How does the giant hogweed cause damage to the skin?
The sap contains toxic chemicals. When the sap comes into contact with skin and is then exposed to sunlight, it causes severe burns, blisters, and long-lasting scars.
Even minor exposure can lead to painful rashes and sensitivity to sunlight that may last for years.
How can we spot giant hogweed?
Giant hogweed is a relative of cow parsley so it may look familiar. However, whereas cow parsley is quite delicate-looking, giant hogweed has a thick, green stem with purple blotches and coarse white hairs. Its leaves can be over 1.5 metres wide.
In the summer, it has large umbrella-shaped clusters of small white flowers that can span up to 80 cm across.
What should you do if you touch giant hogweed: simple first aid
If you come into contact with giant hogweed, it’s crucial to act quickly:
- Step out of the sunlight – this prevents the sap from reacting with your skin
- Immediately wash the affected skin with plenty of cool water. Use soap if you can.
- Use cloth over the area to block sunlight until you get home. Alternatively, you can use sunblock.
- Consult a healthcare professional for advice and treatment, especially if you develop blisters or severe reactions.
- Follow their advice. This may involve wearing suncream for several weeks.
How to report giant hogweed
If you spot this plant in your area, please report it. Follow the link to report sightings in:
Remember, while it’s important to admire nature, some plants are best enjoyed from a distance!
Learn more about staying safe outside
We offer an online course for lovers of the great outdoors through our sister organisation, eLearn Here Direct. Topics include:
- How to get help
- Injuries, poisoning and bleeding
- Drowning
- First aid kits and infection control
