PEOPLE across the Keighley district are being warned to be cautious of giant hogweed.

The invasive weed is expected to thrive after another wet spring.

Contact with the plant, whose sap is highly toxic, can cause severe discomfort and blistering of the skin.

Trade body the Property Care Association has produced a guide to help people recognise the plant, which can grow up to five metres high and produces a large, white, umbrella-shaped flowering head.

Daniel Docking, for the association’s invasive weed control group, says: "Too often there are reports of people who have been injured after inadvertently coming into contact with giant hogweed.

"Children are particularly vulnerable, as they can encounter the plant whilst playing outdoors in the summer.

"We reported last year that the wet weather was providing an optimum environment for the invasive non-native weed to thrive, and a repeat of those conditions this year means the plant will take hold once again.

"Anyone who comes into contact with giant hogweed can develop symptoms including a rash, itching and blisters. And in some cases, people need urgent medical attention.

"Giant hogweed has some distinctive features, which should help people to recognise it."

For more details, visit property-care.org/homeowners/advice/invasive-weeds/giant-hogweed