# The tree keepers

An episode of [Our Changing World](https://invisiblenetwork.ai/podcast/208013620), 23 Mar 2026, 26 min.

Audio: https://flex.acast.com/media.rnztools.nz/rnz-kete-oro-prod/video/private/ac_mp3,af_48000,br_192k,f_mp3,fl_attachment/v1774322352/audio/ocw/ocw-20260324-1558-the_tree_keepers_v2.mp3

In Dunedin the local tree crop association has been looking after a heritage apple orchard, but some mixed up labels meant they weren’t quite sure what varieties they had. A chance encounter at a public open day sets one young researcher on a scientific quest to ID them all. Plus, in a nursery in Rotorua, a propagation scientist is figuring out the best way to grow a native tree from cuttings. Go to this episode on rnz.co.nz for more details

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