Ms Bourne saw the story on Facebook and thought, "Oh dear we can't let this happen."
She got in touch and with just two weeks to go before the big day, the experienced timetabler hit the phones.
She has sorted 12 sites around the Mount where daffodils and daffodil pins will be sold, and volunteers to staff them between 9am and 5pm.
Ms Bourne, who moved home to New Zealand four years ago, was no stranger to the impact of cancer.
Her sister died at 27. There were just three weeks between diagnosis and her death, and it hit Ms Bourne - then just 25 - hard.
"It was a shock from the start to the finish."
Ms Bourne's dad, granny and husband all have had cancer, and a good friend in England died very suddenly with breast cancer.
She knew how important the support of organisations such as the Cancer Society was in those hard times.
"I feel like I am giving something back."
Hayley Wilkinson, fundraising co-ordinator for the Waikato/Bay of Plenty Cancer Society, said Ms Bourne hit the ground running to make sure Daffodil Day would be a success.
"She has been a real asset and has already been exploring ways to make this Daffodil Day as successful as possible."
Tauranga Daffodil Day co-ordinator Jo said 1460 bunches of fresh daffodils were delivered around Tauranga on Tuesday.
Some floral arrangements arrived in style, delivered by volunteers from the vintage car club. Representatives of ANZ Bank, Tauranga Mount Taxis, Countdown and Emergency Management Bay of Plenty also made deliveries.
The main fundraising day will be Friday when more than 300 volunteers will spread out across the Bay's shopping districts and supermarkets to collect donations.