Metrosideros robusta Northern rata | Rātā

This guide is based on a literature review. It compiles information from various sources. Different sources may offer varying advice and findings.

Propagation summary

Fresh seeds germinate well. Limited information available on long-term storage.

Seed propagation category

Easy.

Geographical distribution

Found in forests from North Cape in the North Island through to Marlborough, Nelson, and Westland regions of the South Island.(1)

Seed collection

Seed collection occurs in April.(2) Seeds shed between April and June can be dispersed by wind.(1)

Seed storage

Seeds are sensitive to desiccation (drying) with viability loss after a few weeks.(3) Can be dry stored for 3 months.(4)

Seed dormancy

Germination reported to take from 20 days(1) to 60 days.(4)

Germination

Easily germinated from fresh seeds.(3)

Research opportunity

Germination, seed storage, and vegetative propagation needs further investigation.

Information about the native seed profiles

All species names are in the following order: scientific name, common name, and Māori name. Names may vary by region. We have tried to use the most common names across New Zealand.

We have sourced photos from different websites and creators. We have used the images under different licences. These include Public Domain and Creative Commons licenses. For Metrosideros robusta, the image details are:

The basis for each seed profile is a literature review carried out by Scion. Te Uru Rākau – New Zealand Forest Service commissioned and worked on the review to produce a native seed catalogue. The full seed catalogue is on the Ministry for Primary Industries (MPI) website.

1.

Northern Rata Metrosideros robusta (1999) Factsheet. New Zealand Plant Conservation Network.

2.

Burrows, C J (1997) Reproductive ecology of New Zealand forests: 1. Natural seed storage phenomena. New Zealand Natural Sciences 23, 31.

3.

New Zealand Plant Conservation Network. Metrosideros robusta. Accessed 17 October 2024.

4.

Metcalf, L J (1995) The propagation of New Zealand native plants. Godwit; Auckland, New Zealand.