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Tree Information x
| Identifier: | AR/0665 |
|---|---|
| Historical Reg No: | 400 |
| Tree Type: | Single |
| Registered By: | Redfern, J. |
| Registration Category: | Notable tree – International interest |
| General Notes:
|
This outstanding tree is the NZ National Champion and one of the largest in the world (NZNTT, 2019).
It is presumed to have been planted in the 1920's by Cornwall Park staff under Sir James Gunson's direction. He was chairman of the board and responsible for a significant amount of planting during this period. Although this was only planted in the 1920's, its position, canopy spread and impressive girth make it one of the best formed Algerian oaks in New Zealand (Redfern 2005). This is the first registration completed for Cornwall Park as a part of Notable Trees NZ group. The park has one of the major tree collections in New Zealand. There is extensive historical material available as Cornwall Park celebrated its Centenary in 2004 (Flook 2005). |
Single Tree Details
| Genus: | Quercus | |
|---|---|---|
| Species: | canariensis | |
| Common names: | Algerian oak, Mirbeck's oak | |
| Height: | 27.20m | |
| Height measurement method: | Laser Nikon Forestry 550 | |
| Height Comments: | (none) | |
| Girth: | 650 cm | |
| Girth measurement height: | 1.15 m | |
| Girth Comments: | Measured below branch flare at the waist. | |
| Diameter: | 206.9 cm | |
| Crown Spread A: | 39.50m | |
| Crown Spread B: | 40.00m | |
| Avg. Crown Spread: | 39.75m | |
| Actual Planting Date: | actual date not specified | |
| Approx. Planting Date: |
circa 1920 e.g. circa. 1860 |
|
| Current Age: | 106 years | |
| Tree Health Description: | A good full canopy, however some leafminer damage. | |
| Tree Form Type: | Single Trunk | |
| Number of Trunks: | 1 | |
| Tree Form Comments: | Root zone has been fenced off and canopy now allowed to extend down to ground level. | |
| Champion Tree Score: | 378 | |
| Local Protection Status: | Unknown | |
| Tree Present: | Yes | |
| STEM Score: | 225 |
Observations
| Date | Observer | Action |
|---|---|---|
| 18 Feb 2026 | Collett, G. | |
| 01 Apr 2020 | Barker, K.P. | |
| 15 Mar 2010 | Cadwallader, B.G. & G.A. | |
| 01 Jan 2005 | Redfern J |
Location
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Images
| Preview | Credit | Date |
|---|---|---|
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Gerald Collett | 18 Feb 2026 |
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Brad Cadwallader | 15 Mar 2010 |
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Brad Cadwallader | 15 Mar 2010 |