Celebrities, including Blackcaps Captain Brendon McCullum, and thousands of volunteers are doing their bit to raise money to fight cancer.
Today is Daffodil Day, the culmination of a month of fund-raising through August, and provides the main income source for the Cancer Society, raising between $4.5 million and $5m each year.
McCullum will be the guest of honour at the Makfi Challenge Stakes at Daffodil Race Day at Hastings Racecourse on Saturday.
While on a break from international cricket after leading New Zealand to the World Cup final and a tour of England earlier this year he will sign autographs and pose for photos, before attending a high tea celebration for Cancer Society volunteers.
Daffodil Race Day is a fundraiser for the Hawke's Bay Cancer Society and entry to the course is by donation.
On Wednesday golfer Lydia Ko was doing her bit when a painting she did sold for $3220 as part of the ANZ Daffodil Day Art Auction on Trade Me.
Ko, who on Monday won the Canadian Pacific Women's Open, donated a painting of a golf ball on a green to the annual auction, which raises money for the Cancer Society.
Broadcaster Toni Street took out second place with her piece: Hope dares to blossom in the darkest hour, earning $1630.
Prime Minister John Key's Beehive on Daffodil Day sketch raised $1625.
The Cancer Society has been holding Daffodil Day since 1990.