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Tree Information x

Identifier: CR/2175
Tree Type: Single
Registered By: Hammer, J.R.
Registration Category: Notable tree/s – Local interest
General Notes:
This tree once graced the grounds of Sunnyside Lunatic Asylum, Christchurch’s first mental health facility and now affords a backdrop to Hillmorton Hospital (Hammer, J.R., 2025).

Single Tree Details

Genus: Platanus
Species: x hispanica 'Acerifolia'
Common names: London plane,
Height: 18.50m
Height measurement method: Nikon Forestry Pro
Height Comments: (none)
Girth: 675 cm
Girth measurement height: 1.4 m
Girth Comments: (none)
Diameter: 214.9 cm
Crown Spread A: 28.50m
Crown Spread B: 25.60m
Avg. Crown Spread: 27.05m
Actual Planting Date: actual date not specified
Approx. Planting Date:
e.g. circa. 1860
Current Age: not known years
Tree Health Description: In good vigor
Tree Form Type: Single Trunk
Number of Trunks: 1
Tree Form Comments: low spreading canopy
Champion Tree Score: 349
Local Protection Status: No
Tree Present: Yes
STEM Score: 0

Observations

Date Observer Action
10 Dec 2025 Hammer, J.R.

Location

Lat/Long: -43.55208988014821 / 172.5946913957596
Location Name: Hillmorton Hospital
Address: Annex Rd
Suburb: Hillmorton
City/Town: Christchurch
Region: Canterbury
Location Description: Surrounded by abandoned buildings in the older part of the hospital.
Public Accessibility: Hospital
Local Authority: (not specified)

Images

Preview Credit Date
Ra Hammer 10 Dec 2025
Ra Hammer 10 Dec 2025
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