Project Crimson is donating $1500 to the Bushy Park Trust to improve access to one of the area's biggest attractions.
The money will be used to upgrade the main walking tracks and public viewing areas to Ratanui, which is a large rata tree in the park.
It was from Project Crimson Trust's Community Restoration Fund of $15,000.
The trust intends to collect seed from some of their northern ratas and then grow potted trees for public sale, providing an income for Bushy Park while increasing awareness about rata.
Ratanui is a43m high, 12m round, and believed to be the country's largest rata. Project Crimson has been supporting Bushy Park Trust's northern rata initiative for many years, and has been protecting and restoring pohutukawa and rata trees, and their ecosystems since 1990.
Project Crimson Trust chairman Joris de Bres said the groups programme this year was special because it was celebrating its 25th year.
"It seems hard to believe but 25 years ago the future of pohutukawa and rata looked bleak.
"Possums were out of control and in some parts of the country up to 90 per cent of coastal pohutukawa stands were gone. Organisations like Bushy Park Trust have played a major part in protecting some of New Zealand's best rata stands, so we are thrilled to be able to continue to support their amazing work," he said.
Bushy Park Trust chairwoman Liz Tennet said Project Crimson had been one of the trust's earliest supporters, helping with an information panel about Ratanui more than 10 years ago.
"Our trust has recently had this sign refurbished and, thanks to the support of Project Crimson, we can now provide better access for visitors to view this magnificent tree, along with several of its slightly smaller but equally impressive, siblings," she said.
And there has been other good news for the trust - recently long-time supporter of Bushy Park Trust, Allan Anderson, won the environmental award in the Pride of New Zealand awards for his years of work on behalf of Bushy Park reserve.
The Wanganui conservationist plans to use part of the $4000 cheque he received, as part of his national award, to create more information signage for rata at Bushy Park.