It may only be November, but there is a good reason Christmas trees adorned with purple decorations are springing up around the district.

As part of Northern Sydney’s workplace giving partnership with homelessness and crisis support charity Dignity, staff and the public are being encouraged to donate non-perishable food items as well as new clothes, socks and undies as part of the Christmas with Dignity campaign.

The campaign, which officially launched district-wide on November 2 at Ryde Hospital, is running for its second year and supports those who may be experiencing homelessness during the festive season.

Chief Executive Deb Willcox said the campaign gives everyone a chance to make a small but compassionate difference to someone’s holidays.

"In a year that has been challenging in so many ways, Christmas has taken somewhat of a backseat for many of us – but some might not even have a place to call home this Christmas, or if they do, they might not have anything to eat," Deb said.

"That’s why we have been so proud to partner with an organisation like Dignity, who provide that crisis support through housing and Dignity Dishes as well as advocacy for those experiencing homelessness in our community."

CEO and Co-Founder of Dignity Suzanne Hopman said it appreciated the support and donations from all of NSLHD’s staff.

"Dignity’s Christmas appeal has commenced with the simple mission of ensuring those at risk of or experiencing homelessness feel far from forgotten this Christmas and we are extremely grateful to the Northern Sydney Local Health District for partnering with us again this year to help achieve this," she said.