The forest at Bushy Park Tarapuruhi will be extended outward from the sanctuary across a 2ha paddock, with the public invited to help in the planting.
Some planting has already been done by school groups, volunteers and visiting trampers.
The Bushy Park Trust has decided to retire the 2ha paddock reached by the loop of the Rātānui-Moore's Ride- Fenceline and Kapiti Tracks. Its eucalypts have been felled and it has views of Kāpiti Island on a clear day.
The paddock had been used to graze cattle while the sale of those cattle, many donated by local farmers, helps pay for sanctuary maintenance.
Paddocks near the Bushy Park Homestead are still grazed for this purpose, and the trust is grateful for the help.