Giant hogweed has secured a foothold across the country, prompting warnings that the fight against the “most dangerous” invasive species is in danger of being lost.
Burns caused by the plant are very painful and can leave scars. Its sap contains chemicals that react with light when in contact with skin and cause blisters. Experts say that if it gets into the eyes it can cause blindness.
Giant hogweed, or Heracleum mantegazzianum, comes from the Caucasus and was introduced to Britain in the early 19th century. It is often found along waterways and can grow to five metres, but is also appearing in streets and gardens.
It is feared that children may mistake the poisonous plant for cow parsley or the harmless common hogweed
