The Cancer Council is calling on Queenslanders to show their support for Daffodil Day, by turning the state yellow and volunteering by selling daffodils.

Cancer Council Queensland CEO Chris McMillan says Daffodil Day is one of Queensland's most iconic events, bringing hope and joy into the lives affected by cancer.

Ms McMillan says the Cancer Council is seeking around 1200 volunteers to sell thousands of daffodils from 300 sites across the state.

The iconic event will take place on Friday, August 24th to raise funds for lifesaving cancer research.