A mass bulb-planting session has been undertaken in the grounds of Thornton Grammar School.

Some 500 crocuses have been planted to support a campaign by Rotary in Great Britain and Ireland.

Working with the Eden Project, the International Flower Bulb Centre, the National Trust and Learning through Landscapes, the campaign aims to plant thousands of purple crocus bulbs at schools, residential homes and public spaces so they will be in flower for Rotary Day on February 23.

The purple flowers represent the colour of ink dabbed on a child’s finger to indicate they have been immunised against polio.