"It was just soul-destroying, because we had spent so many hours up here just volunteering, doing it all, and trying to make it nice. And that someone could just rip it out in one fell swoop was just overwhelming, really.
"I'm probably never going to find them, but someone must know where they've gone, because you don't take that many trees home and just plant them in the front yard with nobody noticing."
She did not plan to fund a replanting with her pension.
"If somebody had some spare natives, I'd certainly put them in."
A spokeswoman for the NZ Transport Agency, which owns the land, said the plants were not removed by the agency.