Public Danger & Invasive Species

Invasive species pose a significant threat to Aberdeenshire’s natural habitats and ecosystems. These non-native plants and animals can spread rapidly, outcompeting native species and disrupting the balance of local environments. This section outlines some of the key invasive species to watch out for, with a particular focus on the serious public danger posed by Giant Hogweed

Giant Hogweed

A Danger to the Public

Giant Hogweed (Heracleum mantegazzianum) is an invasive plant that can grow up to 5 metres tall. It is a serious public health risk due to its toxic sap, which can cause severe skin burns and long-lasting scars.

Why is Giant Hogweed Dangerous?

Giant Hogweed contains photosensitising compounds called furanocoumarins. When the sap comes into contact with human skin and is exposed to sunlight, it can cause:

Severe Blisters: Painful blisters that can develop within 24 hours of exposure.
Permanent Scarring: Dark, raised scars that may last for months or even years.
Long-term Sensitivity: The affected area can remain sensitive to sunlight for several years, resulting in recurring burns and irritation.

How to Identify Giant Hogweed

Height: Can grow up to 5 metres.
Leaves: Large, deeply lobed leaves, often with a jagged edge, similar in appearance to those of the cow parsley but much larger.
Flowers: White, umbrella-shaped flower clusters up to 80cm wide.
Stems: Thick, green stems with purple blotches and stiff, white hairs.

IMPORTANT: Avoid touching the plant and keep children and pets away from it. If you accidentally come into contact with Giant Hogweed, wash the area immediately with soap and water and seek medical advice if a reaction occurs.

Other Invasive Species

Japanese Knotweed: Causes structural damage and spreads aggressively.
Himalayan Balsam: Chokes out native vegetation along riverbanks.

What Can You Do?

If you spot Giant Hogweed or other invasive species, report them immediately to prevent their spread and protect the environment and public health.

Report Invasive Species

Help protect Aberdeenshire’s natural beauty and safety by reporting any sightings of invasive species to Invasive Species Scotland. Early detection and prompt reporting are critical to managing and controlling these harmful plants and animals.